Grant SAP Series - System Schematic & Interconnect Diagram

Unstirred water bath SAP, JBA, JBN Service Manual (Version 1.0) September 2013
31667 Page 11 of 23
2.5 System Schematic & Interconnect Diagram
Blue
White (230V), Black (120V)
Yellow/Green
Blue
Yellow/Green
Brown
J2
J3
J6
J9
J5 – Neutral
J8 – Earth
J7 – Live
U16 - SMPSU
Membrane Keypad
4 buttons (JBA, JBN)
7 buttons (SAP)
Mains
Power
Inlet
Heater Mat
Temperature Probe
Reprogramming Edge
Connector
To Case
Fuses
Over-
temperature
cut-out
TRIAC
LED Display
(on reverse side)
Control and display PCB
Tank, heater and probe assembly
Duplicate configuration:
Control and display PCB
Membrane Keypad
Tank , heater and probe assembly
SAPD only
Note:
Mains connections are shown for PCB issue B.
PCB issue C and above are ordered:
Earth, Neutral, Live (PCB designators are unchanged)