Appendix A Technical Specifications - Michell Instruments Promet EExd User Manual

APPENDIX A
Appendix A Technical Specifications
Main Unit – Measurement Parameters
Channel Configuration
Moisture Parameters
Moisture Content
Analysis Pressure
Sensor Technology
Sensor Technology
Measurement Range
Calibration Range
Accuracy
Measured Resolution
Displayed Resolution
Temperature Coefficient
HMI
Keyboard/Interface
Display
Datalogging
Communications and
Output
36
Single and dual channel
Dew point °C and °F / Pressure
Automatic pressure compensated conversions:
ppm for natural gas and ideal gas
V
lb/MMscf and mg/m for natural gas
3
dew point at a pressure input by the user for natural gas & ideal gas
Calculations for natural gas moisture content based on either IS0
18453 or IGT#8 to customer order preference
barg, MPa and psig
Michell Ceramic Moisture Sensor
-120 to +30°Cdp (-184 to +86°Fdp)
1 ppb to 30,000 ppm
V V
0 to 250 barg (0 to 3625 psig)
-100 to +20°Cdp (-148 to +68°Fdp)
10 ppb to 23,000 ppm
V
Dew point: ±1°C between –59.9 & +20°Cdp
(±1.8°F between -75.9 to +68°Fdp)
Moisture content: ±10% of reading
Dew point: ±2°C between –60 & -100°Cdp
(±3.6°F between -76 to -148°Fdp)
Moisture content: ±20% of reading
Analysis Pressure: ±0.25% FS
0.1°C: -80 to +20°Cdp (0.2°F: -112 to +68°Fdp)
1°C: -100 to -80°Cdp (2°F: -148 to -112°Fdp)
Dew point: 0.1°C (0.2°F)
Moisture content: autoscale, 5 digits
MPa and barg: 0.1 (1 psig)
Algorithm compensation
Capacitive touch-screen through glass
Vacuum fluorescent
A rolling maximum of 150 data logs is available
Each log records time, date, moisture and pressure values for each
channel
5 minutes minimum and 60 minutes maximum logging intervals can
be set by the user
Two non-isolated 4-20 per measurement channel
500 Ω maximum load
Range and parameter settable by user
Modbus RTU @ 9600 baud-rate
Alarms: two volt free contacts per channel; one process value and one
instrument status
Also available via Modbus communications
Promet EExd User's Manual
V
97090 Issue 16.1, November 2019