Forbes Marshall CODEL TunnelTech205, Operating Manual

Page: 29 / 47

Technical Manual
Page 21
CODEL
Issue : B Rev. : 1 Date : 11/07/22 Ref. : 100042
6.10. Set-Up Mode (Mode 5)
All operating parameters
– output settings, alarms, calibration, etc. – can be changed from this mode. To prevent
any unauthorised changes, the user must enter a four number code before the mode can be entered.
After this mode has been selected, the instrument will suspend its operation and the Data Valid LED will
extinguish. If no key is pressed within 5 seconds after selection of this mode, the instrument will revert to
the normal operating mode.
Press the MODE key until the number 5 is displayed in the top left-hand corner. After the security code has been
correctly entered, there are four sub-modes of operation from which the set-up parameters may be changed (see
Figure 16); these are:
- Configure O/P 1 & 2 - analogue output set up
– origin, units, span, rolling average and fault condition.
- Alarm 1 & 2
– source and level set-up.
-
Parameters - the following are set from this mode - security code, comms. I/D, protocol, baud rate and
clock.
-
Calibrate - the zero calibration of the instrument can be set.
After the correct code has been entered, the user may access each of the six sub-modes (listed above) by using
the ARROW keys and pressing ENTER when the required option is displayed.
6.10.1. Security Code Entry
Once the display is as shown here, press the ENTER key to gain access to the set-up mode. The cursor will now
flash over the first digit of the presented code number; select the required first digit with the arrow keys and press
ENTER. Repeat this procedure for the four numbers. If the code is correct after the ENTER key is pressed on the
last digit, then the sequence will be continued; if it is not correct, the instrument will return to the operating mode.
The code number will be set to 0000 by CODEL at the factory and should be changed by the user from
within the set-up mode.