Delta Controls DPT-2000 - Manual (Page 26)

24 IOM-DPT-A: FEB 2014
9.3. Calibration .
The transmitter can be calibrated with reference values of the standard operating temperature sensor
transmitter to its scale (calibration input) or to current output 4 ... 20 (20 ... 4) mA - (current calibration).
The values set calibration points need not be equal to the upper and lower limit of the basic range. But they can
not exceed out up and down. The width of the calibration range shall not be less than the minimum width of the
setting range. In order to achieve the best accuracy it is recommended that the calibration points were close to
the beginning and end of the setting range. Calibration can be made using the KAP-03 or KAP-03Ex
communicator according to the procedure described in the "User's Guide" IO.KAP-03 p 11.3. or other tools
provided in clause 9.2.3.
10. INSPECTIONS AND SPARE PARTS
10.1. Periodic inspections
Periodic inspections should be made in accordance with the regulations to which the user is subject.
During inspection, the shield of the measuring insert should be checked for loose connections and leaks, the
electrical connectors should be checked with regard to tightness and the state of the gaskets, packing glands.
Check the characteristic conversion curve by following the procedures for “Calibration” and, where appropriate,
“Configuration”.
10.2. Unscheduled inspections
If the transmitters are installed in a location where they may be exposed to mechanical damage,
hydraulic impulses or excess voltage, or transmitter operate abnormal
– inspections should be carried
out as required, check the characteristic of processing.
Where it is found that the signal in the transmission line is absent or its value is incorrect, a check
should be made on the line and its terminal connections.
Check whether the values of the supply voltage and load resistance are correct.
If a communicator is connected to the power supply line of the transmitter, a fault in the line may be
indicated by the message “No response” or “Check connection”.
If the line is in order, check the operation of the transmitter .
10.3. Spare parts.
Parts of the transmitter which may be subject to wear or damage and require replacement: cover and packing
gland gaskets .
Other listed parts, due to the specific features and requirements of explosion-protected
devices, may be replaced only by the manufacturer or by a firm authorized by the manufacturer
.
11. PACKING, STORAGE AND TRANSPORT.
The transmitters should be packed singly or in sets, in such a way as to protect them from damage during
transportation.
The transmitters should be stored in multiple packs under cover, in a place free of vapours and reactive
substances, with an air temperature between +5°C and +40°C, and relative humidity of not more than 85%.
During transportation, the transmitters should be packed and secured so as to prevent them from shifting.
Any means of transport may be used, provided direct atmospheric effects are eliminated
.
12. GUARANTEE
The manufacturer guarantees the proper operation of the transmitters for a period of 24 months from the date
of purchase and servicing provided under the guarantee and following the guarantee period. In the case of
special versions, the guarantee period shall be agreed by the manufacturer and the user, but shall not be less
than 12 months.
13. ADDITIONAL INFORMATION
The manufacturer reserves the right to make constructional and technological changes which do not lower the
quality of the transmitters.
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