Table of Contents
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Introduction
Your Gems DM21 Rate Meter with Total is one model in a family of 1/8 DIN units
which offers breakthrough display technology as well as easy-to-program single-line
parameters. Designed to provide instant visual feedback regarding an application's
key input value, the DM21 not only has a 0.71" high LED display (27% larger than
other 1/8 DIN units), but also the ability to change display color based on process
status (programmable parameter in Operation Mode). Easy programming is made
possible via a help function and a secondary legend display.
This manual will guide you through the installation and wiring of your DM21 unit
with information on proper panel mounting and rear terminal layout and wiring
instructions. In addition, the instrument's operation and programming modes are
thoroughly explained. The Operation Mode provides day to day operation and
allows editing of preset values. The Program Mode enables the configuration of
various parameters prior to initial operation. These parameters include those for
basic configuration as well as other settable features which will enhance the
functionality and usability of
the device.
This manual also provides
information on the DM21
Rate Meter with Total's
alarms; transistor, relay and
linear outputs; product
specifications; and ordering
and warranty procedures.
Features
• AWESOME 0.71" high digit LED display
• Programmable color change display based on
an event
• Programmable help function and secondary
legend display
• Display configurable for update time, min.
number of pulses, and forced zero time
• Optional linear output relative to rate
• Choice of NPN, PNP, or magnetic primary
input
• Filter speed settable for 20, 200, or 10,000 Hz
• Standard outputs: two NPN transistors & one
relay (optional 2nd relay)
• Front panel reset enable and alarm lockout
• Optional RS-485 plug in card
• CE approved
Index
Installation
Panel Mounting
page 2
Wiring
page 3
Operation
Front Panel
page 4
Operation Mode
page 5
Programming
Program Mode
page 6-10
Appendix A
Specifications
page 11
General
Ordering Information
page 12
Warranty
page 12
Technical Manual
182022
DM21-5XXXX
Rate Meter
with Total
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Table of Contents
Related Manuals for Gems Sensors DM21 Series
Summary of Contents for Gems Sensors DM21 Series
- Page 1 Introduction Your Gems DM21 Rate Meter with Total is one model in a family of 1/8 DIN units which offers breakthrough display technology as well as easy-to-program single-line parameters. Designed to provide instant visual feedback regarding an application’s key input value, the DM21 not only has a 0.71” high LED display (27% larger than other 1/8 DIN units), but also the ability to change display color based on process status (programmable parameter in Operation Mode).
-
Page 2: Installation
I N S T A L L A T I O N PANEL MOUNTING 100mm Gems Sensors 82344 48mm 96mm 10mm 92mm +0.5 -0.0 PANEL 45mm CUTOUT +0.5 -0.0 SIZE The instrument can be mounted in a panel with a thickness of up to 6mm. The... -
Page 3: Rear Terminal Connections
I N S T A L L A T I O N WIRING REAR TERMINAL CONNECTIONS Power Supply RS-485 Comm. Relay 1 + VDC - (opt.) 14 15 Linear Relay 2 Output (opt.) (opt.) Input Power For an AC powered unit, Terminal #13 serves as the line or Hot side connection for AC powered units and as the positive side for DC powered units. -
Page 4: Operation
O P E R A T I O N FRONT PANEL Primary Display Gems Sensors 82345 Output Indicators Secondary Display Down Key Scroll Key Program Key Reset Key Key Functions Display Functions Function Display Function Down In Operation Mode: Used in edit operation to decrement Primary In Operation Mode: Default display is the rate value. -
Page 5: Operation Mode
O P E R A T I O N OPERATION MODE CHANGING A PARAMETER VALUE Gems Sensors Gems Sensors Default display is the rate value. Use the Scroll Key to move from left to 34567 23456 right and highlight the digit that needs to be changed. -
Page 6: Entering Program Mode And Basic Operation
P R O G R A M M I N G PROGRAM MODE ENTERING PROGRAM MODE AND BASIC OPERATION Gems Sensors The Program Mode can be accessed from the 23456 Operation Mode by holding the Program Key for 3 seconds. - Page 7 P R O G R A M M I N G PROGRAM MODE Continued Rate Calibration Factor Decimal Point rCALP Function: Sets the decimal point position for the rate calibration factor display Adjustment Range: 0 to 0.0000 Default Value: 0 Rate Calibration Factor r C A L Function: Used to scale the input into engineering units by multiplying this value by the input frequency...
- Page 8 P R O G R A M M I N G PROGRAM MODE Continued Filter Speed S P E E d Function: Enables the debounce filter of the meter to properly match the application Adjustment Range: 2 0 0 1 0 0 0 0 200: The unit will accept up to 10,000: The unit will accept up 20: The unit will accept up to 20...
- Page 9 P R O G R A M M I N G PROGRAM MODE Continued Front Panel Reset Enable Function: Determines whether the Front Panel Reset key can be used to reset the rate value Adjustment Range: d i S Enable: The rate value can be reset Disabled: The Front Panel Reset Key is while being viewed in Operation Mode by disabled and the rate value can only be...
- Page 10 P R O G R A M M I N G PROGRAM MODE Continued Communication Address (Appears only if communication board is installed and activated) A d d r Function: Defines the unique communication address of the counter Adjustment Range: 1 to 99 Default Value: 1 Baud Rate (Appears only if communication board is installed and activated) b A u d...
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Page 11: Specifications
A P P E N D I X SPECIFICATIONS Count Inputs Communication Type: Sinking/Sourcing or Contact Closure Type: Serial asynchronous, UART to UART Frequency: 10 kHz max. Data Format: Open ASCII: One start bit, even parity seven Logic: Low < 2.0 VDC, High > 3.0, 30V max. data bits, one stop bit Impedance: 10 KΩ... -
Page 12: Ordering Information
Equipment sold by Gems Sensors Inc. is not intended for use in a nuclear installation, nor shall it be used as a "Basic Component" as same as deined under Part 21, Title 10 of the Code of Federal Regulations. In the event of such use, you agree to indemnify and hold us harmless from any and all subsequent liabilities and responsibilities which might arise in connection with such use.