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GESTRA
GESTRA Steam Systems
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NRGT 26 1 |
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NRGT 26 1S |
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Installation Instructions 810213-04 |
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Level electrode |
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NRGT 26-1, NRGT 26-1 S |
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Contents |
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Page |
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Important Notes |
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Usage for the intended purpose |
…………………………………………………………………………………………………4 |
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Safety note……………………………………………………………………………………………………………………………. |
4 |
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Danger…………………………………………………………………………………………………………………………………. |
4 |
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Attention………………………………………………………………………………………………………………………………. |
4 |
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ATEX (Atmosphère Explosible)…………………………………………………………………………………………………… |
4 |
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Explanatory Notes |
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Scope of supply……………………………………………………………………………………………………………………… |
5 |
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System description…………………………………………………………………………………………………………………. |
5 |
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Function……………………………………………………………………………………………………………………………….. |
5 |
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Designs………………………………………………………………………………………………………………………………… |
5 |
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Technical Data |
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NRGT 26 1, NRGT 26 1S……………………………………………………………………………………………………… |
6, 7 |
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Corrosion resistance……………………………………………………………………………………………………………….. |
7 |
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Sizing…………………………………………………………………………………………………………………………………… |
7 |
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Name plate / marking……………………………………………………………………………………………………………… |
8 |
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Dimensions.………………………………………………………………………………………………………………………….. |
9 |
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Design |
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NRGT 26 1, NRGT 26 1S……………………………………………………………………………………………………….. |
10 |
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Key…………………………………………………………………………………………………………………………………….. |
12 |
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Functional Elements |
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NRGT 26 1, NRGT 26 1S……………………………………………………………………………………………………….. |
11 |
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Key…………………………………………………………………………………………………………………………………….. |
12 |
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Installation |
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NRGT 26 1………………………………………………………………………………………………………………………….. |
13 |
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NRGT 26 1S………………………………………………………………………………………………………………………… |
13 |
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Attention…………………………………………………………………………………………………………………………….. |
13 |
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Note…………………………………………………………………………………………………………………………………… |
13 |
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Tools.…………………………………………………………………………………………………………………………………. |
13 |
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Examples of installation…………………………………………………………………………………………………………. |
14 |
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Key…………………………………………………………………………………………………………………………………….. |
15 |
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Contents – continued – |
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Page |
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Wiring |
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NRGT 26 1, NRGT 26 1S……………………………………………………………………………………………………….. |
16 |
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Wiring diagram…………………………………………………………………………………………………………………….. |
16 |
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Attention…………………………………………………………………………………………………………………………….. |
16 |
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Tools.…………………………………………………………………………………………………………………………………. |
16 |
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Basic Setting |
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Factory setting NRGT 26 1.……………………………………………………………………………………………………. |
17 |
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Factory setting NRGT 26 1S.………………………………………………………………………………………………….. |
17 |
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Establish active measuring range (control range)……………………………………………………………………….. |
17 |
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Attention…………………………………………………………………………………………………………………………….. |
17 |
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Commissioning |
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Danger……………………………………………………………………………………………………………………………….. |
18 |
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Check wiring……………………………………………………………………………………………………………………….. |
18 |
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Apply mains voltage……………………………………………………………………………………………………………… |
18 |
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Adjust lower measuring range………………………………………………………………………………………………… |
18 |
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Adjust upper measuring range………………………………………………………………………………………………… |
18 |
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Note…………………………………………………………………………………………………………………………………… |
18 |
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Operation |
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NRGT 26 1, NRGT 26 1S……………………………………………………………………………………………………….. |
19 |
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Note…………………………………………………………………………………………………………………………………… |
19 |
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Operational Malfunctions |
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Fault finding list for troubleshooting…………………………………………………………………………………………. |
20 |
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Decommissioning |
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Danger……………………………………………………………………………………………………………………………….. |
21 |
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Disposal……………………………………………………………………………………………………………………………… |
21 |
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Annex |
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Declaration of conformity………………………………………………………………………………………………………. |
22 |
Important Notes
Usage for the intended purpose
Use level electrodes NRGT 26-1 and NRGT 26-1S only for indicating liquid levels.
Safety note
The equipment must only be installed and commissioned by qualified and competent staff. Retrofitting and maintenance work must only be performed by qualified staff who – through adequate training – have achieved a recognised level of competence.
Danger
When loosening the electrode steam or hot water might escape. This presents the danger of severe scalds to the whole body.
It is essential not to mount or dismantle the electrode unless the boiler pressure is verified to be 0 bar. The electrode becomes hot during operation. Touching the hot equipment presents the risk of severe burns to hands and arms. All installation and maintenance work must only be performed when the equipment is cold.
The terminal strip of the NRGT 26-1 / NRGT 26-1S is live during operation. This presents the danger of electric shock.
Cut off power supply before fixing or removing the housing cover.
Attention
The name plate specifies the technical features of the equipment. Note that any piece of equipment without its specific name plate must neither be commissioned nor operated.
ATEX (Atmosphère Explosible)
According to the European Directive 94/9/EC the equipment must not be used in potentially explosive areas.
Explanatory Notes
Scope of supply
NRGT 26-1
1 Compact system type NRGT 26-1
with joint ring (of stainless steel 1.4301) D 27 x 32 to DIN 7603, bright annealed 1 Installation manual
NRGT 26-1S (for marine applications)
1 Compact system type NRGT 26-1S with flange DN 50 (2″), PN 40 to DIN 2635 1 Installation manual
System description
The compact system NRGT 26-1 works according to the capacitance measurement principle. The NRGT 26-1 is used for signalling different levels in electrically conductive and non-conductive liquids:
■ Level maintained within the control band defined by two preset limits
The NRGT 26-1 has a level transmitter integrated in the electrode body which produces a standard signal of 4 -20 mA. External switchgear is not required.
Function
The principle of capacitance measurement is applied to determine the level. The electrode rod and the vessel wall form a capacitor. If the level of the dielectric located between the two capacitor plates changes, the current which flows through the plates changes proportionally to the level. A dielectric is defined as an insulating substance, which excludes many liquids such as water. In order to receive a useful measuring result the measuring rod, which is submerged to varying depths in the liquid, must be completely insulated. After the calibration of the zero point/measuring range (0 %/100 %) the level can be read off from a remote display unit. The level measuring range can be changed during operation.
Designs
NRGT 26 1:
Screwed design ¾» BSP, DIN ISO 228-1. Fig. 2
NRGT 26 1S:
Flanged design for marine application DN 50, PN 40, DIN 2635. Fig. 3
Technical Data
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NRGT 26 1, NRGT 26 1S |
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Type Approval N° |
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NRGT 26 1: |
TÜV · WRS · 02 391 |
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NRGT 26 1S: |
LR 98/20075 |
RINA ELE/30298/2 |
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GL 99249 96HH |
BV 10617/AO BV |
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NKK A 556 |
DNV A 8394 |
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KR HMB 06190 MS002 |
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Max. service pressure |
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32 bar g at 238 °C |
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Connections |
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NRGT 26 1: |
Screwed ¾» BSP, DIN ISO 228 1 |
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NRGT 26 1S: |
Flanged DN 50, PN 40, DIN 2635 |
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Materials |
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Case: |
Die cast aluminium 3.2161 (G AlSi8Cu3) |
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Stem: |
S. S. 1.4571 CrNiMoTi17 12 2 |
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Flange: |
Forged steel 1.0460 P250GH |
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Measuring electrodes: |
S. S. 1.4571 CrNiMoTi17 12 2 |
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Electrode insulation: |
PTFE |
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Spacer disc: |
PTFE (design for marine applications) |
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Mains supply |
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230 V +/ 10 %, 50/60 Hz |
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115 V +/ 10 %, 50/60 Hz (option) |
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224 V +/ 10 %, 50/60 Hz (option) |
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24 V DC |
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Length supplied / measuring range |
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NRGT 26 1 |
NRGT 26 1 S |
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1 Max. installation length at 238 °C |
3 Max. installation length at 238 °C |
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2 Measuring range |
4 Measuring range |
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1 |
2 |
3 |
4 |
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373 |
300 |
316 |
275 |
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477 |
400 |
420 |
375 |
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583 |
500 |
526 |
475 |
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688 |
600 |
631 |
575 |
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794 |
700 |
737 |
675 |
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899 |
800 |
842 |
775 |
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1004 |
900 |
947 |
875 |
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1110 |
1000 |
1053 |
975 |
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1214 |
1100 |
1157 |
1075 |
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1319 |
1200 |
1262 |
1175 |
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1423 |
1300 |
1366 |
1275 |
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1528 |
1400 |
1471 |
1375 |
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1636 |
1500 |
1579 |
1475 |
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2156 |
2000 |
See Fig. 2 |
2099 |
1975 |
See Fig. 3 |
Technical Data – continued –
NRGT 26 1, NRGT 26 1S – continued –
Power consumption
5 VA, 3 VA at 24 V DC
Fuse
Thermal fuse Tmax = 102 °C
Sensitivity
Range 1: Water ≥ 0,5 µS/cm
Range 2: Water ≥ 20 µS/cm Range 3: Fuel oil EL εr 2,3
Output
4 – 20 mA level-proportional; electrically insulated, max. load 500 Ω
Indicators and adjustors
2 red LEDs for “level 0 %” or “level 100 %” within the measuring range, 1 green LED for “level between 0 % and 100 %” of measuring range,
1 code switch for selecting the measuring range,
2 trimmer potentiometers for small-percentage adjustment of the measuring range, 2 terminal lugs for voltage measurement.
Cable entry
Cable gland with integral cable clamp 2 x M20 x 1.5
Protection
IP 65 nach DIN EN 60529
Max. admissible ambient temperature
70 °C (158 °F)
Weight
NRGT 26 1: approx. 1.8 kg NRGT 26 1S: approx. 8.0 kg
Corrosion resistance
Provided that the equipment is used for its intended purpose, its safety is not impaired by corrosion.
Sizing
The body must not be subjected to sharp increases in pressure. Welds and flanges of the electrode are designed to withstand dynamic loading (bending and alternating stress). The dimensional allowances for corrosion reflect the latest state of technology.
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Technical Data |
– continued – |
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Name plate / marking |
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Vor Öffnen des Deckels |
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Gerät freischalten! |
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Betriebsanleitung |
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beachten |
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Before removing cover |
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isolate from power supplies |
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See installation instructions |
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Avant d’ouvrir le couvercle |
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dèconnecter complètement |
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l’appareil |
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Voir instructions de |
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montage |
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NRGT 26-1 |
PN 40 |
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NRGT 26-1S PN 40 |
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G ¾ |
1.4571 |
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DN 50 |
1.4571/1.0460 |
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Pmax |
32 bar (464psi) |
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Tmax |
238°C (453°F) |
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Tmax |
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70°C |
IP 65 |
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(133°F) |
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24 V |
115 V |
230 V |
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50 / 60 Hz |
5VA |
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H= _ _ _ _ _ _ _ _ _ _ mm |
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4 — 20 mA / 500 |
250 V ~ T 2,5 A
TÜV . WRS. 02-391
GL 99249-96 HH
GB Reg. Design 2 053 113
US Pat. 5 719 342, Design 383 403
GESTRA AG, D-28215 Bremen
Fig. 1
Vor Öffnen des Deckels Gerät freischalten! Betriebsanleitung beachten
Before removing cover isolate from power supplies See installation instructions
Avant d’ouvrir le couvercle dèconnecter complètement l’appareil
Voir instructions de montage
NRGT 26-1
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PN 40 |
G ¾ |
1.4571 |
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Pmax |
32 bar (464psi) |
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Tmax |
238°C (460°F) |
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Tmax |
IP 65 |
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70°C |
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(158°F) |
24 VDC 3VA
H= _ _ _ _ _ _ _ _ _ _ mm
4 — 20 mA / 500
250 V ~ T 2,5 A
GL 99249-96 HH
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TÜV . WRS. |
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02-391 |
0525 |
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GESTRA AG |
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Münchener Str. 77 |
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D-28215 Bremen |
Vers.XX Ser.-Nr.: 316141
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Flowserve Hardware
- Text mode
- Original mode
Advertising
GESTRA Steam Systems
GESTRA
NRGT 261
NRGT 261S
Installation Instructions 81021304
Level electrode
NRGT 26-, NRGT 26- S
Advertising
This manual is related to the following products:
NRGT26-1S
(Ocr-Read Summary of Contents of some pages of the GESTRA NRGT 26-1S Document (Main Content), UPD: 19 September 2023)
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12, GESTRA NRGT 26-1S 12 Examples of installation NRGT 26-1 Fig. 5 Protection tube (provided on site) for installation inside the boiler Fig. 6 Protection tube (provided on site) for installation inside the boiler Fig. 7 Protection tube (provided on site) for installation inside the boiler and in combination with other GESTRA equipment 2 20 DN 50 G ¾ ∅ 20 ∅ 20 ≤ 90° i e b c d f g k l 20 ∅ 20 ≥ 10 DN 50 G ¾ ∅ 20 ≤ 3000 e b c f g k l ≤ 90° Fig. 8 External level pot DN 20 DN…
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10, GESTRA NRGT 26-1S 10 GESTRA Steam S ystems GESTRA Installation Dimensions NRGT 26-1, NRGT 26-1S 0 9 8 Fig. 3 NRGT 26-1S a b = 68 173173 Ra 3.2 0.5 ∅ 33 Ra 12.5 Fig. 4 140 ∅48.5 ∅ 42.5 336 62 7 — continued — 3 4 Screwed G ¾ A, ISO 228 GESTRA Steam S ystems GESTRA Fig. 2 NRGT 26-1 173 b = 68 336 a NRGT 26-1 NRGT 26-1S 1 2 3 4 373 300 316 275 477 400 420 375 583 500 526 475 688 600 631 575 794 700 737 675 899 800 842 775 1004 900 947 875 1110 1000 1053 975 1214 1100 1157 1075 1319 1200 1262 1175 1423 1…
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18, 18 Commissioning procedure Danger The terminal strip of the level transmitter is live during operation. This presents the danger of electric shock! Cut off power supply before mounting or removing the housing cover! Use only a completely insulated screwdriver according to VDE 0680 for setting the measuring points. 1. Unscrew cover screws o and remove cover p. Fig. 10 2. Lower liquid level until the lower end of the measuring range is reached. 3. Raise the pressure in the steam …
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7, 7 Technical data NRGT 26-1, NRGT 26-1S Fuse external slow-blow 0.5 A internal thermal fuse T max = 102°C Sensitivity of response Range 1: Water ≥ 20 µS/cm Range 2: Water ≥ 0.5 µS/cm Range 3: Fuel oil EL ε r 2,3 Output Actual value 4 – 20 mA, level proportional. Electrically insulated, max. load 500 Ω Indicators and adjusters 2 red LEDs for signalling «Level 0 %» or «Level 100» withi…
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14, 14 GESTRA SteamSystems GESTRA Electrical connection NRGT 26-1, NRGT 26-1S Fig. 10 v Fig. 11 Shown without cover plate o r p s q t u y 1 2 3 4 6 7 8 9 0 5 12 34 5 w x A z B C D
… -
15, 15 A self-locking fixing nut C connects the terminal box to the electrode part. Before establishing the electrical connection you can turn the terminal box through max. +/- 180° into the desired direction (cable gland). Electrical connection Connection of level transmitter 1. Unscrew housing screws o and remove housing cover p. Fig. 10 2. Remove terminal strips z and A from circuit board. 3. Strip off approx. 40 mm of cable insulation coating and remove approx. 5 mm of …
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17, 17 Basic settings Factory setting NRGT 26-1 The level transmitter features the following factory set default values: Measuring range1300 mm: Switch r position 4, water ≥ 20 µS/cm Measuring range 1400 mm to 1700 mm: Switch r position 4, water ≥ 20 µS/cm Measuring range 1800 mm to 1500 mm: Switch r position 4, water ≥ 20 µS/cm Measuring range 1600 mm to 2000 mm: Switch r …
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9, 9 Installation Note The level transmitter NRGT 26-1 can be installed together with one GESTRA level elec- trode for water level limiting or for high-level alarm in a single protection tube or exter- nal level pot (inside diameter 100 m). Fig. 5 — 8. If the level limiting electrode is installed inside the vessel, it must be at least 40 mm away from the upper vent hole. For the approval of the boiler standpipe the relevant regulations must be considered. Refer to pages …
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2, 2 Contents Page Important notes Usage for the intended purpose …………………………………………………………………………………………………4 Function ………………………………………………………………………………………………………………………………..4 Safety note …………………………………………………………………………………………….…
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5, 5 The equipment meets the requirements of Directives: UL 508 and CSA C22.2 No. 14-13, Standards for Industrial Control Equipment. File E243189. Directives and standards VdTÜV Bulletin «Water Monitoring 100» Approvals for Marine Applications The level transmitter NRGT 26-1S is approved for marine applications. The level transmitter NRGT 26-1 is type approved acc. to VdTÜV Bulletin «Water Level 100» if used in combi…
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19, GESTRA NRGT 26-1S 19 Attention Before carrying out the fault diagnosis please check: Supply voltage: Is the level transmitter supplied with the mains voltage specified on the name plate? Wiring: Is the wiring in accordance with the wiring diagram? Troubleshooting Indication, diagnosis and remedy Malfunctions Equipment does not work accurately Error Remedy The transmitter was installed without a protection tube. The protection tube is required because it serv…
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13, 13 Examples of installation b Flange PN 40, DN 50, DIN EN 1092-01 (for one electrode) Flange PN 40, DN 100, DIN EN 1092-01 (for electrode combination) c For the approval of the boiler standpipe with connecting flange the relevant regulations must be considered. d Vent hole ∅ 20 mm e High water HW f Electrode rod g Protection tube DN 80 (in France according to AFAQ ≥ DN 100) h Protection tube DN 100 i Distance between electrode rod and protection tube ≥ 14 mm j …
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11, 11 Installation NRGT 26-1S 1. Check seating surfaces and place joint ring onto the connecting standpipe. 2. Put flange 8 with level transmitter onto connecting standpipe and bolt them together. Tighten bolts in diagonally opposite pairs. NRGT 26-1 1. Check seating surfaces. Fig. 4 2. Place supplied joint ring 5 onto seating surface of the threaded standpipe or flange. Fig. 4 3. Apply a light smear of h…
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16, GESTRA NRGT 26-1S 16 Electrical connection Wiring diagram for level transmitter NRGT 26-1, NRGT 26-1S Fig. 12 + – (L) (N) DC Supply Thermal fuse 4-20 mA max. load. 500 Ω Earthing screw in housing PE S1 Disconnecting switch Fuse Connecting level transmitter NRGT 26-.. with supply voltage 115 / 230 V AC An external slow-blow fuse 0.5 A must be provided for the level transmitter. To connect the vol…
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21, 21 If faults occur that are not listed above or cannot be corrected, please contact our service centre or authorized agency in your country. Maintenance Cleaning the electrode rod The equipment may only be installed and removed by qualified personnel. Observe note in chapter «Installation» on page 11. Before cleaning the electrode rod decommission and remove the level transmitter. Clean the electro…
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20, 20 Troubleshooting 1. Unscrew cover screws o and remove housing cover p. 2. Pull electrode wires from terminal lugs on module. Detach terminals strips z A. 3. Undo the functional earth B connection. 4. Unscrew the fixing screws D for the electronic module and take out the module. The module is available as spare part. Stock code # NRGT 26-1 NRGT 26-1S 321317 230 V AC 321340 115 V AC 321354 24 V AC/DC 321319 230 V AC 321342 115 V AC…
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[Page 1] GESTRA NRGT 26-1S 1 EN English Level Transmitter NRGT 26-1 NRGT 26-1S Original Installation Instructions 810213-11 |
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[Page 2] GESTRA NRGT 26-1S 2 Contents Page Important notes Usage for the intended purpose …………………………………………………………………………………………………4 Function ………………………………………………………….. |
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[Page 3] GESTRA NRGT 26-1S 3 Contents Page — continued — Basic settings Factory setting NRGT 26-1 ……………………………………………………………………………………………………..17 Factory setting NRGT 26-1S ……………………………… |
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[Page 4] GESTRA NRGT 26-1S 4 Important notes Usage for the intended purpose The level transmitters NRGT 26-1 and NRGT 26-1S are used for continuous level monitoring in steam boilers and (pressurized) hot-water installations or in condensate and feedwater tanks. In conjunctio… |
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[Page 5] GESTRA NRGT 26-1S 5 The equipment meets the requirements of Directives: UL 508 and CSA C22.2 No. 14-13, Standards for Industrial Control Equipment. File E243189. Directives and standards VdTÜV Bulletin «Water Monitoring 100» Approvals for Marine Applicatio… |
 |
[Page 6] GESTRA NRGT 26-1S 6 NRGT 26-1, NRGT 26-1S Technical data Service pressure PN 40, 32 bar at 238°C Mechanical connection NRGT 26-1: Screwed G ¾ A, ISO 228 NRGT 26-1S: Flange DN 50, PN 40, DIN EN 1092-01 Materials Screw-in body: 1.4571, X6CrNiMoTi17-12-2 Electrode ro… |
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[Page 7] GESTRA NRGT 26-1S 7 Technical data NRGT 26-1, NRGT 26-1S Fuse external slow-blow 0.5 A internal thermal fuse T max = 102°C Sensitivity of response Range 1: Water ≥ 20 µS/cm Range 2: Water ≥ 0.5 µS/cm Range 3: Fuel oil EL ε r 2,3 Output Actual value 4 �… |
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[Page 8] GESTRA NRGT 26-1S 8 Technical data Name plate/marking Equipment designation, pressure rating Fig. 1 End connection, material number Pressure/temperature rating Power rating Measuring range Actual value output CE Marking Manufacturer Safety note Disposal note PN 4… |
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[Page 9] GESTRA NRGT 26-1S 9 Installation Note The level transmitter NRGT 26-1 can be installed together with one GESTRA level elec- trode for water level limiting or for high-level alarm in a single protection tube or exter- nal level pot (inside diameter 100 m). Fig…. |
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[Page 10] GESTRA NRGT 26-1S 10 GESTRA Steam S ystems GESTRA Installation Dimensions NRGT 26-1, NRGT 26-1S 0 9 8 Fig. 3 NRGT 26-1S a b = 68 173173 Ra 3.2 0.5 ∅ 33 Ra 12.5 Fig. 4 140 ∅48.5 ∅ 42.5 336 62 7 — continued — 3 4 Screwed G ¾ A, ISO 228 GESTRA Steam S ystems … |
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[Page 11] GESTRA NRGT 26-1S 11 Installation NRGT 26-1S 1. Check seating surfaces and place joint ring onto the connecting standpipe. 2. Put flange 8 with level transmitter onto connecting standpipe and bolt them together. Tighten bolts in diagonally opposite pairs. NRG… |
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[Page 12] GESTRA NRGT 26-1S 12 Examples of installation NRGT 26-1 Fig. 5 Protection tube (provided on site) for installation inside the boiler Fig. 6 Protection tube (provided on site) for installation inside the boiler Fig. 7 Protection tube (provided on site) for instal… |
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[Page 13] GESTRA NRGT 26-1S 13 Examples of installation b Flange PN 40, DN 50, DIN EN 1092-01 (for one electrode) Flange PN 40, DN 100, DIN EN 1092-01 (for electrode combination) c For the approval of the boiler standpipe with connecting flange the relevant regulations… |
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[Page 14] GESTRA NRGT 26-1S 14 GESTRA SteamSystems GESTRA Electrical connection NRGT 26-1, NRGT 26-1S Fig. 10 v Fig. 11 Shown without cover plate o r p s q t u y 1 2 3 4 6 7 8 9 0 5 12 34 5 w x A z B C D |
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[Page 15] GESTRA NRGT 26-1S 15 A self-locking fixing nut C connects the terminal box to the electrode part. Before establishing the electrical connection you can turn the terminal box through max. +/- 180° into the desired direction (cable gland). Electrical connection Co… |
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[Page 16] GESTRA NRGT 26-1S 16 Electrical connection Wiring diagram for level transmitter NRGT 26-1, NRGT 26-1S Fig. 12 + – (L) (N) DC Supply Thermal fuse 4-20 mA max. load. 500 Ω Earthing screw in housing PE S1 Disconnecting switch Fuse Connec… |
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[Page 17] GESTRA NRGT 26-1S 17 Basic settings Factory setting NRGT 26-1 The level transmitter features the following factory set default values: Measuring range1300 mm: Switch r position 4, water ≥ 20 µS/cm Measuring range 1400 mm to 1700 mm: Switch r posit… |
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[Page 18] GESTRA NRGT 26-1S 18 Commissioning procedure Danger The terminal strip of the level transmitter is live during operation. This presents the danger of electric shock! Cut off power supply before mounting or removing the housing cover! Use only a completely insulated sc… |
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[Page 19] GESTRA NRGT 26-1S 19 Attention Before carrying out the fault diagnosis please check: Supply voltage: Is the level transmitter supplied with the mains voltage specified on the name plate? Wiring: Is the wiring in accordance with the wiring diagram? Troubleshooti… |
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[Page 20] GESTRA NRGT 26-1S 20 Troubleshooting 1. Unscrew cover screws o and remove housing cover p. 2. Pull electrode wires from terminal lugs on module. Detach terminals strips z A. 3. Undo the functional earth B connection. 4. Unscrew the fixing screws D for the ele… |
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[Page 21] GESTRA NRGT 26-1S 21 If faults occur that are not listed above or cannot be corrected, please contact our service centre or authorized agency in your country. Maintenance Cleaning the electrode rod The equipment may only be installed and removed by qualified personn… |
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[Page 22] GESTRA NRGT 26-1S 22 For your Notes |
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[Page 23] GESTRA NRGT 26-1S 23 For your Notes |
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[Page 24] GESTRA NRGT 26-1S 24 810213-11/05-2017csa (808437-15) · GESTRA AG · Bremen · Printed in Germany GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon +49 421 3503-0 Telefax +49 421 3503-393 E-mail [email protected] Web www.gestra.de Agencies al… |