Warning. Kobold Pad, PAD-...N

PAD

4.3 Warning

▲ Warning

Electrical can result in death serious injury:

 Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.

▲ Warning

Electrical can result in death serious injury:

 Only qualified & trained personnel should be allowed to operate these transmitters.

4.4 Fail Mode Alarm

Kobold Smart Pressure Transmitter automatically and continuously performs selfdiagnostic routines. If the self-diagnostic routines detect a failure, the transmitter drives its output outside of the normal saturation values. The transmitter will drive its output low (down) or high (up) based on the position of the failure mode alarm jumper. See Table 4.1 for Output values.

[Table 4-1 Standard Alarm and Saturation Value]

Level 4~20 mA Saturation 4~20 mA Alarm

Low/Down

High/Up

3.9 mA

20.8 mA

≤ 3.75 mA

≥ 21.75 mA

Fail Mode Selection (Fail High/UP or Low/DOWN) can be configured using the appropriate jumper switch provided on the LCD Module or DIP switches included on the Main CPU Module. For units provided with a LCD module one can select desired fail safe mode directly from the jumper switch included in the front display and this setting overrides the DIP settings on the back-end Main CPU module, provided the DIP switch “2” on CPU module is DOWN. If DIP switch “2” on CPU module is UP, this setting overrides the jumper setting on LCD module. Default setting from the factory is “Fail Down” (DIP Switch “2” on CPU Module is DOWN).

However, in case of blind units please select your required DIP switch settings from the DIP switch labelled (2) marked on the Main CPU board. Recommended jumper & DIP settings are listed in the table below for ready reference.

Select Fail

Mode

Fail Down

Fail Up

Both LCD Module and CPU

Module

Only CPU

Module

CPU Module LCD Module CPU Module

Down

Down

D

U

D

U

Up U or D page 22 PAD K15/0522 ATEX

< Fail Mode Selection DIP Switch of CPU Module >

UP

DOWN

1. WR_EN (EEPROM Write Enable)

DOWN : ENABLE CONFIGURATION CHANGES

UP : DISABLE/ LOCK CONFIGURATION CHANGES

2. Fail Mode(Alarm)

DOWN : LOW

UP : HIGH

Note: DIP Switch (1) shown on Left in Fig 4-1 is for Write Enable/ Disable selection. DIP switch (2) shown on right in Fig 4-1 is for Fail Mode.

(Figure 4-1. Fail Mode and EEPROM-Write Selection DIP Switch)

< Fail Mode Selection Jumper Switch of LCD Module >

U O O O U O O

(FAIL MODE DOWN, place jumper to right)

O

FAIL MODE SELECT

D O O O D

(FAIL MODE UP, place jumper to left)

PAD

Figure 4-2 Fail Mode Selection Jumper Switch of LCD Module

PAD K15/0522 ATEX page 23