Veris Technologies pH Manager - Operating Instructions - Manual (Page 57)

Pub.# OM17-MSP-pH
6-12
Procedure #3: Trouble-shooting Communication Problem between Instrument and External
Controller
Communication between the Veris Instrument and the External Controller is required for the
system to initialize (sampler cylinder moves to neutral), and function. A communication failure
between these components may be expressed as INIT ERR (initialization error) or COMM ERR
(communication error). Follow flow chart below to address problems in their logical sequence.
Figure 3.1 Flowchart for testing communication between DataLogger or PC and External
Controller
MAKE SURE POWER CABLE IS DISCONNECTED BEFORE ATTEMPTING ANY OF THE
FOLLOWING STEPS
1. Look for obvious damage to cable. Unplug the communication cable from the external
Controller. Check the pins in each side of the connector--gently press on each pin (2 in each
connector) with a screwdriver or something similar to check for loose or broken pins. See
Figure 2.