Telaire T7000 Operating Manual

GE
Sensing
Telaire® 7001 CO2 and Temperature Monitor
User Instructions
Introduction
The GE Telaire® 7001 CO2/Temperature monitor (shown in Figure 1 below) is an easy to use hand-held instrument, which provides stable and
highly accurate readings due to GE Telaire patented dual beam NDIR technology. The monitor, equipped with a 0-4 V output, is ideal for long­term monitoring and recording.
Figure 1: GE Telaire 7001 CO
/Temperature Monitor
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Power-Up Procedure
To power-up the monitor, do as follows:
1. Press the Power Button and a 2 second delay will occur before the
display becomes visible.
2. A duration of 10 seconds will elapse before displaying the current
readings.
CO
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3. WARM- UP will display for approximately 1 minute. During this
time, adjustments cannot be made to the sensor.
Display Features and Modes
WARM-UP - Indicates a 1 minute warm-up
ON LINE - Indicate when a PC is communicating to the sensor via
RJ45 port
Normal Operating Mode - After warm-up the sensor will stabilize
and display the current conditions
Adjustment Modes
By pressing the mode button, you can scroll through the adjustment modes. Once the desired mode is displayed, press Enter to make adjustments. Press Enter again to save and leave the adjustment mode. The following are the adjustment modes:
ELEVATION - Used to compensate for elevation changes.
Startup Procedure
The following procedures describe Battery Operation, Low Battery and AC Power Operation.
Battery Operation
For portable use, the monitor will operate up to 70 hours on 4 AA industrial alkaline batteries. The batteries can be installed by removing the cover from the battery compartment and following the diagram displayed on the back of the monitor (see Rear View in Figure 1 above).
Low Battery
The low battery signal flashes when less than 30 minutes of battery life remains. At this point, the batteries should be replaced or the AC adapter should be used as a substitute. If ordinary operation continues, the monitor will become inoperable and only the LOW BATT signal will display on the LCD.
AC Power Operation
The sensor is shipped with a 6V DC, 500 mA AC/DC adapter. To use the adapter, connect the plug into the back of the monitor and plug the transformer into any standard wall outlet.
Note: It is important to use the adapter supplied with the GE
Telaire 7001. Using the wrong adapter may cause damage to the monitor. Also, the battery operation will not function as a backup during a power loss.
CALIBRATION - Used when calibrating.
TEMPERATURE -Used for temperature calibration
OUTSIDE - To manually input CO
rate.
levels for the CFM ventilation
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CALIBRATION IN PROGRESS - Displays during calibration.
Display Features
CO
Temperature and Ventilation Rates (Lower Display) - The Up/
US Standard to Metric Conversion - The Temperature, Ventila-
Readings (Upper Display) - Remain visible at all times
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Down arrows allow you to toggle through the Temperature and
Ventilation modes. When pressing the Up arrow, the display will go through the following sequence:
Temp °C > Temp °F > Vent Rate l/p/s > Vent Rate cfm/p > Blank
tion rates, and Elevation Readings can be viewed in US Standard or Metric Readings. The Temperature is converted from Fahrenheit (°F) to Celsius (°C); the Ventilation Rates are converted from Cubic Feet Per Minute Per Person (cfm/p) to Liters Per Second (l/p/s) and the Feet (ft) to Meters (m).
October 2006
Page 1 of 5
CO2/Temperature Monitor Operation
Before using the GE Telaire 7001 monitor, it is important to make the elevation correction outlined below.
Ventilation Rate (cfm/p)
The ventilation rate is defined as the value that represents how much outside air is being introduced on a CFM per person basis.
Elevation Correction
The sensor, like any other gas measuring device, is affected by altitude changes. The sensor is shipped with the elevation setting at “zero” or sea level. If you are located at an altitude higher than 500 feet, an adjustment should be made to assure the maximum sensor accuracy. Once the elevation correction is set, it will be stored and saved in the monitor memory.
To change the default setting, do as follows:
1. Press the Mode button
until ELEVATION begins to blink.
2. Press Enter.
3. Press Mode to toggle the
elevation reading between feet (ft) and meters (m).
4. Use the Up/Down button
to adjust the altitude in increments of 500 feet or 100 meters. Once the correct altitude is set, press Enter to save the setting and return to normal mode.
Temperature or CFM/person
The lower display will cycle through the following units when the Up/ Down button is pressed:
Overview
Press the up/down button until cfm/p is displayed. This value represents how much outside air is being introduced on a CFM per person basis. The reading is derived from calculating the outside air ventilation rate to a space based on the inside/outside CO
readings.
The current codes/standards generally require 15 to 20 CFM/Person to be delivered to most spaces to ensure acceptable air quality. Low values indicate low ventilation rates and potentially poor air quality. High levels indicate excessive ventilation and potential excessive energy usage. To obtain accurate measurements, readings should be taken 2 to 3 hours after occupancy has stabilized in a space or at a peak in daily CO
concentrations.
differential
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Adjusting the Outside CO2 Concentration
The sensor is factory set to assume an outside level of 400 ppm, which should be close to the outside concentration in most areas. The outside level of CO2 can be changed by measuring outside levels or by manually
adjusting the monitor, using the following procedure:
1. Power up outside and wait for CO
min).
2. Save the reading by holding the Enter button on the sensor for 5
seconds.
3. This value is used to calculate the ventilation rate based on the
differential of the measured outside value and into measured inside concentration.
levels to stabilize (approx. 5
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Tem p °F, Temp °C, CFM, turn lower display OFF.
Stand-Alone Monitoring
Once the elevation correction has been made, as described above, the sensor will begin to accurately display current room conditions.
Using an External Datalogger
Voltage output for both CO2 and temperature are available via an RJ-45 jack located on the rear of the unit.
Manual Input of Outside Concentration
The monitor is factory set at 400 ppm. To adjust the factory setting (for the CFM/person calculation) or to verify the current setting follow the steps below:
1. Press the Mode button until CO
2. Press the Enter button and the current outside value will display.
3. Use the Up/Down button to increase/decrease the CO
4. Press Enter to save and store the value in the monitor.
and ppm flash.
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value.
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