Filter Cartridge Replacement; Checking The Easidew Portable Electronics Calibration; List Of Spares; Figure 4 2-Wire Connection - View Showing Rear Of Connector Terminal Block - Michell Instruments Easidew Portable HP User Manual

MAINTENANCE
• Replace the locking screw and cable gland.
5.3

Filter Cartridge Replacement

Unscrew the gas inlet fitting to reveal the filter, which can then simply be removed for
checking or replacement.
5.4

Checking the Easidew Portable Electronics Calibration

Figure 4
To verify the display electronics are within calibration, a 4-20mA current source can be
connected in place of the sensor.
At 4 mA the display should show -100.0°Cdp ±0.5°C (-148°Fdp ±0.9°F)
At 20 mA the display should show +20.0°Cdp ±0.5°C ( +68°Fdp ±0.9°F)
If the displayed values are outside of this range, please contact Michell Instruments'
Service Department.
5.5

List of Spares

P/N
SSF-PF-10PK
EAP-BAT
EAP-CHR
12
Easidew Portable HP User's Manual
PIN 1
PIN 3

2-Wire Connection - View Showing Rear of Connector Terminal Block
Description
Pack of 10 particulate filter cartridges
Replacement battery pack
Replacement battery charger

Screen/Shield
(GND)
Optional
97120 Issue 2.3, October 2019
Supply
4-20 mA