Dwyer 3200G User Manual

Page 4

Page 3

Chapter 2 Handling Cautions
This chapter consists of cautions for transmitter handling, storage,
installation, insulation and explosion structure, etc.

Step
1
2

Job
Unpacking
Model and
Specifications
Storage

Calibration

Installation
Locations

Mechanical
Considerations
Electrical
Considerations

Mounting and
Installation
Calibration
on Spot

Operation

Job Details
- Unpack transmitter packing
- Make sure the transmitter nameplate matches the model number on the PO

- In a dry, non-vibration and non-impact area
- Ambient temperature around 77°F (25°C) and 65% relative humidity
- Configuration of the Range, Zero/Span, Unit, Tag, Dampening Time, Transfer

Function, DA Trim and other parameters

- Where ambient temperature are consistant
- Exposure to chemical corrosion, etc.
- Where shock and vibration are minimal
- Where the area classification does not exceed the exposion-proof rating
- Where maintenance is easy
- Where transmitter can be handled easily
- Be cautious of process connections leaking
- 24 VDC

(Power Supply is 11.9 Vdc – 45 Vdc)

- For HART

communication, total resistance on transmitter terminal loop

should between 250 – 550 Ohm

- When mounting the transmitter, an appropriate bracket should be used
- The transmitter should be mounted securely to prevent swing
- Sensor Zero Trim should be done after ten seconds after the differential

pressure stabilizes

- Make sure that PV value is zero and current is 4 mA
- Make sure the transmitter operates properly

Instrument

- HHT
-Pressure Source
- Galvanometer
(Engineering)

(Engineering)

(Mounting and Installation)

HHT or
Zero/Span button

Eye or HHT