OPERATION
Having installed the transducers as instructed, they are ready for use. The transducer should not
be removed whilst the system is at pressure
.
Before applying power, check that the correct
polarity and excitation levels are being applied. See Table 1 for electrical connections.
CALIBRATION
Transducers are calibrated to the datum requested at time of order; this can be identified by the
sixth letter of the identification code as follows:-
A
- Absolute datum
G
- Gauge datum vented to atmosphere via the electrical connector or cable
LOAD CHARACTERISTICS
(4-20mA Current Output)
The total resistive load in the loop (to include all the cable resistance) can be from 'zero to
50 x (supply volts -7) ohms' e.g. with a 24V d.c. supply the permissible load is from zero up to
850 ohms.
OPERATIONAL LIFE:
Limited to 100M cycles to maximum allowable pressure.
WARRANTY
We guarantee this instrument against faulty workmanship and material for a period of one year
from date of delivery. The Company undertake to repair, free of charge, ex-works any
instrument found to be defective within the specified period providing the instrument has been
used within the specification in accordance with these instructions and has not been misused in
any way.
Detailed notice of such defects and satisfactory proof thereof must be given to the Company
immediately after the discovery and the goods are to be returned free of charge to the Company,
carefully packed and accompanied by a detailed failure report. See "RETURN TO FACTORY".
WETTED PARTS
316 and 17-4 PH stainless steel plus Nickel Braze to BS1845 : NK3/HTN2.
SERVICING
The transducer cannot be repaired locally and if damaged should be returned to ourselves at the
address shown below or to accredited dealers when a replacement/repair is required:
Gems Sensors & Controls
Gems Sensors Inc
Lennox
Road
1
Cowles
Road
Basingstoke
Plainville,
CT
06062
Hants. RG22 4AW
U.S.A.
560550-0064
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