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MRC7800 FLOW RECORDERS/CONTROLLERS
Records and totalizes flow from any flowmeter with an analog signal output.
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FEATURES:
- Two displays, allowing you to see critical process values at the same time
- Easy, straightforward programming
- High reliability—eliminates cost of process downtime
- Micro-based recording controller
- Up to 8 relay or solid state outputs for use as totalizer presets
- Up to 4 analog outputs for process retransmission
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Flow Recorders/Controllers Product Description
The MRC 7800 Flow Recorder is a microprocessor based circular chart recorder capable of measuring,
displaying, recording and totaling flow process variables based on an analog signal from any flowmeter. Three square root extraction algorithms are
available for use with a variety of transmitters and transducers, and four algorithms are available for use with a variety of weirs and flumes. Record
functions, alarm settings, and other parameters are easily configured from the front mounted keypad and self-prompting displays of the flow controller. Alarm
settings are fully programmable. Alarm type may be set as Process high or low. Indication is via status LED's provided for each pen. Alarm
outputs can be provided by assigning any specified relays (SPST, SPDT or SSR driver) to the respective alarm. All user data can be protected from
unauthorized changes by the flow controller's Enable Mode security system. The MRC7800 Flow Recorder is protected against loss of data from AC
power failures by a standard battery backup system. Applications for the Flow Recorder include wastewater influent and effluent, potable water well and
raw water, treatment plant processes, and environmental monitoring sites.
All of the flow recorders listed below include a totalizer, display, and 24 VDC transmitter power supply; CSA approved 115/230 VAC, 50/60 Hz line voltage; two
SPDT output relays; one or two 4-20mA retransmission outputs (depending on one or two input model); and a box of 100 starter charts (0-100/24 HR). Chart
rotation speed is programmable from 0.1 to 999.9 hours per revolution in 0.1 hour increments. The flow controller can be provided with one or two pens. Pen
1 is red and Pen 2 is green. Pens are of the disposable fiber-tip type. Changes in pens, as well as charts, are quickly and easily accomplished. Other
options such as a transmitter power supply, NEMA 3 enclosure and additional relays are available for the flow recorders – call us for pricing.
Flow Recorders/Controllers Specifications
Functionality: Record or Diverse Record/Totalizer combination functions
Line Voltage: 115V/230VAC ±10%, 50–60Hz @ 25VA max; CSA approved
Display: 4 digit; 0.56? high, red, 7-segment LED w/3-button keypad
LED Indicators: Out 1, 2; one green pen 2 indicator; ALRM1 and ALRM2 indicators
Chart: 10? circular chart
Chart Drive: DC Stepper Motor
Chart Rotation: User configurable from 0.1 and 999.9 hours per revolution
Chart Range: Bottom and top of span –9999 to 9999 units
Pen Type: One or two disposable fiber tip pen(s)
Pen Color: Pen 1 (red); Pen 2 (green)
Memory Backup: Battery; 5 year minimum life
Enclosure: Injection molded Noryl case; acrylic window; panel or wall mount
Operating Temp: 32 to 122 F (0 to 50 C)
Storage Temp: –40 to 149 F (–40 to 65 C).
Outputs
Relay: SPST/SPDT; 115VAC 5.0A resistive, 1/8HP, 250VA; 230VAC 2.5A resistive, 1/8HP, 250VA
SSR Driver: Open collector output; short circuit protected @ 100mA max; provides 4VDC @ 20mA or 3VDC @ 40mA
Current: 0–20mA or 4–20mA; 0–650 ohm maximum load.
Process Alarm: Direct (High) or Reverse (Low); 0 to 9999 units.
Inputs
DC Milliamps: 0–20mA; 4–20mA (with included shunt resistor)
Volts: 0–5 VDC; 1–5 VDC
DC Millivolts: 0–100mV (can be scaled to any portion of this range)
Isolation: Inputs are a common ground signal
Input Error: mA, mV, and VDC ±0.25% of scaled span or better typically; ±1 least significant digit @ 25°C
Chart Accuracy: ±1% of chart span
Approvals: CE, UL, CSA, FM, ISO 9002 registered
Dimensions: 15.13" (384mm)W x 13.19" (335mm)H x 3.63" (92mm)D
Panel depth: 2.5" (64mm); panel protrusion: 1.3" (33mm)
Weight: 20 lbs (9.1kg)
Warranty: 3 years
Flow Recorders/Controllers Options & Prices
Prices listed are for United States and Canada only. Call or e-mail us for pricing in other countries.
Terms and Conditions
786801100022 MRC 7800 Flow Recorder/Controller
Flow recorder/controller includes one pen input, two relay outputs, one 4-20 mA retransmitter output, one display and totalizer.
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$2,158 |
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788802100022 MRC 7800 Flow Recorder/Controller
Flow recorder/controller includes two pen inputs, two relay outputs, two 4-20 mA retransmitter output, one display per pen and totalizer.
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$2,632 |
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789801100022 MRC 7800 Flow Recorder/Controller
Flow recorder/controller includes one pen input, two relay outputs, one 4-20 mA retransmitter output, two displays and a totalizer.
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$2,350 |
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Circular Chart Recorder Pens
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CP410 Red Circular Chart Recorder Pen
Pen for input 1, 5 chart paper pens per pack.
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$34 per pack |
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CP411 Green Circular Chart Recorder Pen
Pen for input 2, 5 chart paper pens per pack.
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$34 per pack |
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Circular Chart Recorder Chart Paper
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| Model # |
Range |
Rotation Speed |
Per Pack |
Price |
| CP001 |
0-100 |
24 Hr |
100 |
$34.00 |
| CP002 |
0-100 |
7 Day |
100 |
$34.00 |
| CP003 |
0-5 |
24 Hr |
100 |
$34.00 |
| CP004 |
0-5 |
7 Day |
100 |
$34.00 |
| CP005 |
0-10 |
24 Hr |
100 |
$34.00 |
| CP006 |
0-10 |
7 Day |
100 |
$34.00 |
| CP007 |
0-14 |
24 Hr |
100 |
$34.00 |
| CP008 |
0-14 |
7 Day |
100 |
$34.00 |
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NOTE: A three box minimum order is required.
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Related Products
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CR500 Circular Chart Recorder without Display
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$635 |
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MRC 5000 Circular Chart Recorder with Display
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$732 |
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VersaChart Circular Chart Recorders
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$2242 |
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GL500-2-1 Datalogger
Specify Serial or USB version when ordering. Features 2 analog channels and 1 pulse channel. Includes two internal 9V
batteries, Windows-based Global Water Datalogger Software, and PDA software for the CE and Mobile operating systems.
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$310 |
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GL500-7-2 Multichannel Data Logger
Features 7 analog channels and 2 pulse channels, USB and serial communication port,
and includes software and cables. Requires an external 12 VDC power source.
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$625 |
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WQ Water Quality Sensors
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$Varies |
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