Precision-digital PD138 Bedienungsanleitung Seite 1

PRECISION DIGITAL CORPORATION 89 October Hill Road • Holliston MA 01746 USA Tel (800) 343-1001 • Fax (508) 655-8990 www.predig.com PD138 Minimux® I

PD138 Minimux® II Temp & Process Scanner Instruction Manual 10 Panel Mounting • Prepare a standard 1/8 DIN vertical panel cutout – 1.772" x

PD138 Minimux® II Temp & Process Scanner Instruction Manual 11 CONNECTIONS OVERVIEW All connections are made to removable screw terminal connecti

PD138 Minimux® II Temp & Process Scanner Instruction Manual 12 Three-Wire RTD Inputs Note: Three-wire inputs such as thermistors and RTDs can be

PD138 Minimux® II Temp & Process Scanner Instruction Manual 13 4-20 mA Inputs A special version of the Minimux® II is used to switch 4-20 mA si

PD138 Minimux® II Temp & Process Scanner Instruction Manual 14 Voltage Inputs

PD138 Minimux® II Temp & Process Scanner Instruction Manual 15 MULTIPLE PD138 CONNECTIONS Multiple Minimux® II can be connected together to incre

PD138 Minimux® II Temp & Process Scanner Instruction Manual 16 3. Silence, Acknowledge, & Stop/Go Connections Connecting the ACK & STOP/

PD138 Minimux® II Temp & Process Scanner Instruction Manual 17 ALARM-IN CONNECTIONS Each channel on the PD138 has its own Alarm-In line that prov

PD138 Minimux® II Temp & Process Scanner Instruction Manual 18 ALARM RELAY CONNECTIONS One SPDT relay is provided with each unit. This alarm rela

PD138 Minimux® II Temp & Process Scanner Instruction Manual 19 EXTERNAL SIL, ACK, & STOP/GO CONNECTIONS Terminals at the rear of the instrume

PD138 Minimux® II Temp & Process Scanner Instruction Manual 2 Disclaimer The information contained in this document is subject to change without

PD138 Minimux® II Temp & Process Scanner Instruction Manual 20 Front Panel Pushbuttons and Status LED Indicators Button Description Silence Hor

PD138 Minimux® II Temp & Process Scanner Instruction Manual 21 Programming Dwell Time The default dwell time for the PD138 is four seconds per ch

PD138 Minimux® II Temp & Process Scanner Instruction Manual 22 Programming Dwell Time for Multiple PD138 System The dwell times for each PD138 in

PD138 Minimux® II Temp & Process Scanner Instruction Manual 23 Stop or Continuous Scanning On Alarm The PD138 can be programmed to either stop or

PD138 Minimux® II Temp & Process Scanner Instruction Manual 24 OPERATION In its most basic form, the PD138 is the electrical equivalent to a doub

PD138 Minimux® II Temp & Process Scanner Instruction Manual 25 Multiple Units A system made up of multiple PD138s does not require any special se

PD138 Minimux® II Temp & Process Scanner Instruction Manual 26 Alarms Each channel of the Minimux® II has an independent ‘Alarm-In’ terminal that

PD138 Minimux® II Temp & Process Scanner Instruction Manual 27 Alarm Indication The PD138 indicates alarms in 3 ways: 1) A normally green LED t

PD138 Minimux® II Temp & Process Scanner Instruction Manual 28 ALARM SEQUENCE EXAMPLES Sequence A The PD138 is scanning all the selected inpu

PD138 Minimux® II Temp & Process Scanner Instruction Manual 29 If Momentary Alarm When the Minimux® II returns to channel 3, the LED will appear

PD138 Minimux® II Temp & Process Scanner Instruction Manual 3 Table of Contents INTRODUCTION ...

PD138 Minimux® II Temp & Process Scanner Instruction Manual 30 Sequence F2A The main feature of Sequence F2A is its ability to indicate which ala

PD138 Minimux® II Temp & Process Scanner Instruction Manual 31 Acknowledge The unit continues to scan and an operator acknowledges the alarm. A

PD138 Minimux® II Temp & Process Scanner Instruction Manual 32 Stop-On-Alarm The PD138 can be programmed to stop scanning when an alarm condition

PD138 Minimux® II Temp & Process Scanner Instruction Manual 33 MESSAGE LABELS Message labels for the PD138 may be factory-printed at no charge, o

PD138 Minimux® II Temp & Process Scanner Instruction Manual 34 MOUNTING DIMENSIONS Figure 3. Case Dimensions – Side View Figure 4. Case Dimensi

PD138 Minimux® II Temp & Process Scanner Instruction Manual 35 NOTES

PD138 Minimux® II Temp & Process Scanner Instruction Manual LIM138_B.doc SFT053 Ver 1.0 & up 06/09 How to Contact Precision Digital • F

PD138 Minimux® II Temp & Process Scanner Instruction Manual 4 Alarm Indication ...

PD138 Minimux® II Temp & Process Scanner Instruction Manual 5 INTRODUCTION The Minimux® II is a microprocessor-based eight channel analog input s

PD138 Minimux® II Temp & Process Scanner Instruction Manual 6 ORDERING INFORMATION 24 VDC Model 115 VAC Model 230 VAC Model Description PD138-2 P

PD138 Minimux® II Temp & Process Scanner Instruction Manual 7 SPECIFICATIONS NUMBER OF CHANNELS PER MINIMUX 8 double-pole channels per unit NUMB

PD138 Minimux® II Temp & Process Scanner Instruction Manual 8 ALARM ACKNOWLEDGE Front panel ACK and rear connector terminals EXTERNAL SWITCH FUNC

PD138 Minimux® II Temp & Process Scanner Instruction Manual 9 SAFETY INFORMATION !CAUTION: Read complete instructions prior to installation and