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| Home > Products & Solutions > Browse By Product Type > Circle Chart Recorders, Application-Industry Specific > MRC 7800 Flow Recorder |
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MRC 7800 Flow Recorder
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Quick Specs...
- True flow application capability in an easy to use, proven recorder. High reliability eliminates cost of process down time.
- Datalogging of critical values. Record of process history leads to process improvements.
- Broad alarming and indication functionality providing optimal system performance.
- Up to 8 relay or solid state outputs for use as totalizer presets.
- Up to 4 analog outputs for process retransmission.
- Totalizer pulsed outputs.
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Overview / Design Principle:
The MRC 7800 Flow Controller is a microprocessor based circular chart recorder capable of measuring, displaying, recording and totaling flow process variables. Record functions, alarm settings and other parameters are easily configured from the front mounted keypad and self-prompting displays. All user data can be protected from unauthorized changes by the Enable Mode security system. The MRC7800 is protected against loss of data from AC power failures by a standard battery backup system. Applications for the MRC 7800 include process validation, trend analysis, regulatory compliance and product safety. Flow tracking is available with the optional totalizing capability.
Features and Benefits:
- Micro-based recording controller
- Two displays, allowing you to see critical process values at the same time
- Easy, straightforward programming—allows you to configure your recorder with a logical step-by-step process using a simple keypad
- High reliability—eliminates cost of process downtime
- 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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Applications:
- Process Validation, Trend Analysis, Regulatory Compliance, Product Safety
- Flow/Rate Tracking with optional totalizing capability
Industries:
Harsh water environments, sewage treatment, effluent flow, water treatment, etc.
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| Modes: |
Digital; choice of Record or Diverse Record/Totalizer combination functions. |
| Display: |
One 4-digit display (std.); second display optional; 0.56½ high, red, seven segment LED; 3 button keypad; automatic and decimal point positioning; |
| Decimal Positions: |
None, one, two or three decimal places. |
| Status Indicators: |
7 LED status indicators: Out 1, 2; one green LED pen 2 indicator; LED indicators ALRM1 and ALRM2. |
| Chart: |
10½ circular chart; 100 charts furnished with each instrument. Unless otherwise specified, charts shipped with instrument are 0–100 range. 24 hour rotation default setting. |
| 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. |
| Pen Color: |
Pen 1 (red); Pen 2 (green). |
| Memory Backup: |
Battery; 5 year minimum life. |
| Construction/Enclosure: |
Injection molded Noryl case; acrylic window cover. |
| Operating Temp: |
32° to 122°F (0° to 50°C). |
| Storage Temp: |
–40° to 149°F (–40° to 65°C). |
| Humidity: |
0% to 90% non-condensing R.H. |
| Vibration: |
0.5 to 100Hz @ 0.2g. |
| Electro Static Discharge: |
No effect from 5000V static charge over the entire area. |
| Power Consumption: 2 |
5VA max. |
| Line Voltage: |
115V or 230VAC ±10%, 50–60Hz. |
| Thermocouple: |
N/A. |
| RTD: |
N/A. |
| Volts: |
0–5 VDC*; 1–5 VDC*. |
| DC Milliamps: |
4–20mA , 0–20mADC. |
| DC Millivolts*: |
0–100mV (can be scaled to any portion of this range). |
| * Accompanied by removal of a shunt resistor factory installed on the input terminals. |
| 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. |
| Deviation Alarm: |
N/A. |
| Deviation Band Alarm: |
N/A. |
| Alarm Hysteresis: |
0–300 units (width of hysteresis band). |
| Input Measurement Error: |
mA, mV, and VDC ±0.25% of scaled span or better typically; ±1 least significant digit @ 25°C. |
| Ambient Temperature Error: |
0.01% of span per degree C deviation from 25°C. |
| Isolation: |
N/A. |
| Chart Accuracy: |
±1% of chart span. |
| Noise Rejection: |
Common Mode: 90dB minimum; 24VAC maximum for RTD input; 115VAC max for other inputs.
Normal Mode: 85dB minimum @ 60Hz or greater. |
| Transmitter Power Supply: |
Provides up to 42mA of current at 24 VDC. |
| Communications Port: |
N/A |
| Protocol: |
N/A |
| Bit Rate: |
N/A |
| Address: |
N/A |
| Safety: |
UL 1092 File E67237; CSA Spec C22.2 File LR39885, CE EN61010-1 1993/1995. |
| Immunity: |
CE EN50082-1:1992 |
| Emissions: |
CE EN55011:1991 |
| Limit Device: |
N/A |
| Other: |
ISO 9002 registered. |
| Width: |
15.13" (384mm). |
| Depth: |
3.63" (92mm). |
| Height: |
13.19" (335mm). |
| Weight: |
20 lbs (9.1kg). |
| Mounting/Mounting Position: |
Panel or wall. |
- 24V DC power supply option.
- 115 or 230VAC input option.
- Door lock and sealed conduit/connector option.
- NEMA 3 protection optional.
- Totalizing flow option.
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Available Specifications:
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