Partlow MRC 7700

Humidity Recorder

 

 

 

 

MRC7700r
  • True wet bulb/dry bulb capability providing a precise environmental chamber relative humidity level.
  • Compensation for barometric pressure delivering relative humidity accuracy better than 1%.
  • Up to eight profiles (ramp/soak) offering environmental chamber control - powerful capability in one package.

 
Standard Features
Functionality: Digital
Display: 2 digital displays: 0.56½ high, red, seven segment LED; 3 button keypad; automatic and decimal point positioning.
Decimal Positions: None, one, two or three decimal places.
Programmable Profiles: Up to 8 user programmable profiles on profile version.
Status Indicators: 7 LED status indicators: Out 1, 2, Man, Ramp, Soak, Seg 1–6; one green LED pen 2 indicator.
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 normal life.
Construction/Enclosure: Structural foam enclosure with plastic cover standard.

 
Operating Characteristics
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.
RFI: Degradation due to RF fields to recording and output accuracy to 8% at spot frequencies in the range of 100–1000MHz.

 
Electrical
Power Consumption: 25VA max.
Line Voltage: 115V ±10%, 50–60Hz standard; Optional 115/230VAC±10%, 50–60Hz.

 
Inputs
Thermocouple: J, K, T, R, S, E, B, N, C.
RTD: 100 ohm, platinum; 0.00385 ohms/ohm/°C.
Volts: 0–5 VDC; 1–5 VDC.
DC Milliamps: 4–20mA, 0–20mA.

 
Outputs
Control 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.
Alarm/Event Outputs (Options)
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.
Process Alarm: Direct (High) or Reverse (Low) –9999 to 9999 units.
Deviation Alarm: Direct (Deviation above setpoint) or Reverse (Deviation below setpoint) –3000 to 3000 units.
Deviation Band Alarm: Open or closed 1 to 3000 units.
Alarm Hysteresis: 0–300 units (width of hysteresis band).

 
Performance
General
Input Measurement Error: Type J, K, T, E, N, C, T/C and RTD ±0.25% of reading plus 1 degree @ 25°C; Type R, S, B, C, T/C ±0.25% of span @ 25°C.
Ambient Temperature Error: 0.01% of span per degree C deviation from 25°C.
Cold Junction Compensation Error: ±0.2% @ 25°C.
Cold Junction Compensation Rejection: ±0.04% deviation from 25°C.
Common Mode Rejection: 90dB minimum; 24VAC maximum for RTD input; 115VAC maximum for other inputs.
Normal Mode Rejection: 85dB minimum @ 60Hz or greater.
Chart Accuracy: Recording: 0.5% of span.
Chart Rotation: ±0.5% of rotation time.
Algorithm Accuracy: Typically better than 1%; however, actual user accuracy will be dependent upon the quality of the sensors used, the proper installation of the sensors, the input correction adjustments and the barometric pressure adjustments.
Scan Rate: 1 scan/second.
Noise Rejection: Normal mode: 85dB minimum at 60Hz or greater.
Common mode: 90dB minimum at 115VAC maximum.
Sensor Fault Detection: Displays SNSR for sensor break; outputs go off; PV output to 100%; event status remains the same; fault detection is not a function for 0–5V or 0–20mA inputs.
Transmitter Power Supply: Provides up to 40mA of current at 24VDC.
Process Value Output Error Limit: 0.5% of span.
Record Error Limit: ±0.5% of chart span or better typically; ±1.0% of chart span maximum.
Profile Parameters (optional)
Programmable Profiles: 8 user-programmable profiles.
Segments: 1–6 segments per profile.
Ramp and Soak: 1 ramp and soak per segment.
Profile Time Base: User-selectable; choose from hours and tenths (HHH.T), hours and minutes (HH.MM) or minutes and seconds (MM.SS).
Profile Interruption Action: Upon return of AC power either go to OFF mode; continue profile, go to HOLD mode or restart profile at beginning.
Profile Loop Count: 1–9999; 0 = continuous.
Profile End Control: User-selectable; hold at last setpoint; Abort (all outputs off or 0%); transfer to another profile.
Assured Soak: Deviation Hold after Ramp Down; 1–3000 units; 0 = No Auto Hold.
Pen Profiling Configuration: Pen 1 only or Pen 1 and 2.
Remote Run/Hold: User-selectable; override Run/Hold key; Allow Run/Hold key function.
Event Output(s): Up to 3 event outputs possible; each event can be set on or off for each ramp and soak.

 
Communications Interfaces
Communications Port: RS-422/485 serial, half duplex.
Protocol: Partlow ASCII
Bit Rate: User-configurable 300, 600, 1200, 2400, 4800 or 9600/sec.
Address: User-configurable for each pen 0–99.

 
Ratings/Agency Approvals
Safety: L 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.

 
Protection
Enclosure: NEMA 3 enclosure optional; CE compliance optional.

 
Physical Dimensions
Width: 15.13" (384mm).
Depth: 3.63" (92mm).
Height: 13.19" (335mm).
Weight: 20 lbs (9.1kg).
Mounting/Mounting Position: Panel or wall.

 
Options/Accessories
  • RS-485 communication option.
  • 24V DC transmitter power supply option.
  • 115 or 230VAC input option.
  • Door lock and sealed conduit/connector option.
  • CE compliance optional.

 
Warranty: 3 Years
Base Price: $ 2035

 

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Advanced Industrial Systems, Inc.
1-800-532-2477         Fax:  1-502-228-0127       Sales@AdvIndSys.com

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Copyright 1997 - 2008 Advanced Industrial Systems, Inc. All rights reserved.
Last modified: Wednesday November 19, 2008.