Safety Summary
All cautions and instructions that appear in this manual must be complied with to prevent personnel injury or damage to the Probe Transmitter or connected equipment. The specified limits of this equipment must not be exceeded. If these limits are exceeded or if this instrument is used in a manner not intended by Marathon Sensors Inc., damage to this instrument or connected devices could occur.
Do not connect this device directly to AC motors, valves, or other actuators. All AC alarm functions must be connected through an interposing DC coil relay with a maximum coil load of 0.5 amps DC. The Probe Transmitter is not rated to act as a safety device. It should not be used to provide interlocking safety functions for any temperature or process functions. Alarm capabilities are provided for probe test and input faults only and are not to be considered or used as safety contacts in any application.
Connections
The Probe Transmitter has four removable terminal blocks grouped with four terminals each. Each terminal is a wire clamp type with a standard slot screw. Each clamp can accommodate AWG 24 to 12 flexible stranded wire. Maximum torque on the terminal screws should not exceed 0.8 Nm.
The figure below shows the arrangement of the terminals.
1 2 3 4
-+
EVT EVT
AO1 COM NO LOWER
5 6
-+
TC
7 8
-+
MV
UPPER
UPPER
9 10 11 12
-+
RS485
-+
24VDC
LOWER
13 14 15 16
-+ N/C N/C
AO2
Figure 2 Terminal Layout
Page 3 of 23
11/14/2006 | Rev. 14 |
