Omega DP26-RTD manual S3 Jumper Functions

3.2 MAIN BOARD POWER JUMPERS (Continued)

S2 jumpers are for sensor break indications:

*S2A jumper is not used

*S2B jumper is for positive sensor break on input 1 (i.e. heating)

*S2C jumper is for positive sensor break on input 2 (i.e. heating)

*S2D is not used

S3 jumpers are used for the following (refer to Table 3-1):

*To enable or disable the front panel push-buttons

*To allow for an extremely low resistance load for analog output

*To disable the MENU button

*To perform calibration procedure

Test pins TP1 - TP11 are for testing purposes. Do not use as reading errors may result.

Table 3-1 S3 Jumper Functions

Jumper Description

S3-A Install to enable front panel push-buttons.

Remove to disable all front panel push-buttons

S3-B Removed. Install for factory calibration only.

S3-C Normally removed. Install for analog voltage output when load is less than 1 Kohm impedance. Care should be taken when installing this jumper.

S3-D Removed. Not used.

S3-E If installed without S3-B, the MENU button locks out.

While in run mode, if you press the MENU button, the display shows “LOCK".

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