Keithley STP-36CJC Quick Start Manual
Keithley STP-36CJC Quick Start Manual

Keithley STP-36CJC Quick Start Manual

Screw terminal connector

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Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
(440) 248-0400
Fax: (440) 248-6168
www.keithley.com

Introduction

This document contains information necessary to successfully install your hardware.
NOTE
Only used with analog connector on KPCI-3108/7 boards.
WARNING
The STP-36CJC is not intended for use in circuits carrying voltages in excess of
30V RMS, 42.4V peak, or 60VDC.
General definitions
The types of product users are:
Responsible body is the individual or group responsible for the use and maintenance of equipment, and for ensuring that oper-
ators are adequately trained.
Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the
instrument. They must be protected from electric shock and contact with hazardous live circuits.
Maintenance personnel perform routine procedures on the product to keep it operating, for example, setting the line voltage
or replacing consumable materials. Maintenance procedures are described in the manual. The procedures explicitly state if the
operator may perform them. Otherwise, they should be performed only by service personnel.
Service personnel are trained to work on live circuits, and perform safe installations and repairs of products. Only properly
trained service personnel may perform installation and service procedures.
!
The
symbol on an instrument indicates that the user should refer to the operating instructions located in the manual.
The
symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of
normal and common mode voltages. Use standard safety precautions to avoid personal contact with these voltages.
The WARNING heading in a manual explains dangers that might result in personal injury or death. Always read the associated
information very carefully before performing the indicated procedure.
The CAUTION heading in a manual explains hazards that could damage the instrument. Such damage may invalidate the warranty.

Descriptions

The screw terminals on the STP-36CJC screw terminal connector let you connect field wiring to the analog connector on the
KPCI-3108/7 board using a CAB-1284CC cable. The screw terminals are labeled from 1 to 36 and correspond directly to the
functions of the pins on the main analog I/O connector on the KPCI-3108/7 board. For example, if pin 24 is assigned to the
analog function OP0, use screw terminal 24 to attach hardware to output 0. Refer to the KPCI-3108/7 Series User's Manual for
detailed wiring information on connecting the STP-36CJC.
Model STP-36CJC Screw Terminal Connector
Packing List
PA-742 Rev. B / 10-02

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Summary of Contents for Keithley STP-36CJC

  • Page 1 Descriptions The screw terminals on the STP-36CJC screw terminal connector let you connect field wiring to the analog connector on the KPCI-3108/7 board using a CAB-1284CC cable. The screw terminals are labeled from 1 to 36 and correspond directly to the functions of the pins on the main analog I/O connector on the KPCI-3108/7 board.
  • Page 2: Safety Precautions

    The jumpers on the STP-36CJC are used to connect the onboard cold junction compensation circuit to analog input Channel 0 of the 3108/7 PCI board. This circuit is powered by the 3108/7 board and provides accurate cold junction compensation when using thermocouples.
  • Page 3 Remember the following precautions when connecting any hardware to your system: • Do NOT connect the STP-36CJC to voltages above those tolerated by the KPCI-3108/7. Although the STP-36CJC is rated for 60 volts peak-to-peak, the KPCI-3108/7 is rated for a lower voltage. KPCI-3108/7 analog inputs can only tol- erate 35 volts peak without damage.
  • Page 4 Pin to terminal connections Terminal Terminal Terminal Wiring the STP-36CJC 1. Before installing I/O cables and connecting I/O circuits to the STP-36CJC, refer to the User’s Manual for the KPCI-3108/7 Series. 2. Attach the CAB-1284CC cable to the 36-pin D connector.
  • Page 5 1. Differential mode (default) . Set jumpers J3 and J2 in place. Figure 2 The STP-36CJC is now configured to provide a CJC voltage across pins 33 and 15 (Channel 0 on the 3108 analog connector). WARNING Do NOT connect any external devices to pins 33 or 15 on the screw terminal while the STP-36CJC is configured for differential mode.
  • Page 6 3. CJC disabled . Remove jumpers J3 and J2. Figure 4 The CJC circuit on the STP-36CJC is now disabled. External devices may now be safely connected to Channel 0’s pins (pins 33 and 15) on the screw terminal. NOTE When using the STP-36CJC for any kind of temperature measurement, it is highly recommended that you enclose the STP-36CJC in an insulated case (not included).

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