NEW Tegam Weinschel 1806A Dual Type IV Power Meter

Description

NEW Tegam Weinschel 1806A Dual Type IV Power Meter
Comes with what you see in the pictures. If you don't see it, you probably won't get it.
Specifications are from Tegam and may vary slightly due to upgrades, options, or revisions this unit may or may not have.
This unit is new, old stock surplus. It is guaranteed to work for 30-days, parts and labor, excluding freight.
The Unit's Information Tags Read:
Model Number:
1806A
Serial Number:
A22309121806A
Power Requirements:
95-125 VAC, 50-400 Hz, 190 VA Max.
CE Marked:
Yes
Note:
Common Mode Rejection Filter Installed
NSN Information:
NSN Number:
6625-01-565-2261
Description:
METER, SPECIAL SCALE
Features:
Traceable to primary voltage and resistance standards
Internal temperature controller
Compatible with Agilent (HP) 200 Ω thermistor mounts and all TEGAM (Weinschel) RF Power Standards
Internal reference voltage generator for more precise measurements
Fault indicator illuminates when loop balance is prevented
Description:
The Model 1806A Dual Type IV Power Meter is designed for use with thermistor elements and an external DVM to measure high frequency power, microwave power, or insertion loss. It can also function as a standard for the calibration of RF detectors, RF voltmeters, and thermistor mounts manufactured by TEGAM, Weinschel, and Agilent (HP). Thermistor mounts easily interface to the 1806A's front panel binding post connections. Temperature control circuits are included for TEGAM and Weinschel temperature controller thermistor mounts.
The exclusive use of 100% DC substituted power eliminates the effect of AC components on the bridge circuit. AC components have been shown to introduce a substantial error in the substituted power due to the short-term time constant of some bolometer elements. Subsituted DC power levels ranging from 0.01 mW to 30 mW can be measured to within ±0.04%. This makes the 1806A an ideal instrument for insertion loss measurements.
The Model 1806A also has an internal voltage reference generator. This allows low resolution voltmeters to achieve the same precision as higher resolution DVMs. This means an expensive high-resolution DVm is not required. Regardless of the application, all measurements can be made traceable to primary voltage and resistance standards.
The 1806A contains two Type IV Power Meters and two built-in temperature controllers for use with all TEGAM RF Power Transfer Standards. The 1806A is compatible with Agilent (HP) 478A, 200 Ω 486A's, and 8478A thermistor mounts (when used with cable P/N: 138-652). Each power meter has a fault LED indicator which illuminates under any condition preventing loop balance.
Terminals are provided for an external DVM, positive and negative bolometer, and heater control.
Specifications:
Power Range:
0.01 to 30 mW
Subsitution Bridge Accuracy:
±0.04%
Temperature Controller:
Bias Power Temperature Sensitivity:
2 µW/°C per hour
Ambient Temperature Dynamic Range:
+12°C to +32°C (+54°F to +90°F)
Mount Warm-Up Time:
2 hours nominal
Mount Internal temperature:
Approximately +60°C (+140°F)
Loop Gain:
80 dB minimum
Open Loop Frequency Response:
0.1 Hz
Warm-Up Drive (Saturated):
8-10 V @ 200 mA minimum
Indicator:
Green LED
Reference Voltage Generator:
2.5 VDC ±1 mV
Reference Voltage Generator Calibration Accuracy:
10 ppm
Reference Voltage Generator Drift:
6 ppm/1000 hours
Environmental:
Operating Temperature:
+12°C to +32°C (+54°F to +90°F)
Storage Temperature:
-40°C to +75°C (-40°F to +167°F)
Humidity:
Less than 80% RH, non-condensing
Altitude:
Sea level to 2000 meters
Connectors:
Bias Voltage:
Binding posts, 0.75" spacing for banana plugs
Temp:
4-pin mini-microphone
Voltmeter:
Binding posts, 0.75" spacing for banana plugs
Power Requirements:
90 VAC, 50 to 400 Hz, 105 to 125 VAC standard
Weight:
9 kg (20 lb)
Dimensions:
89 mm H x 457 mm W x 391 mm D (3.5" x 18" x 15.4")
For Domestic Customers: Packaging, handling, and order processing included in shipping in all domestic shipments as quoted by the shipping calculator. For International Customers there is a .00 minimum for packaging, handling, and order processing. International shipping to be determined by destination.
Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.:
(1) Are you the end-user of this item?
(2) If you are not the ultimate end-user of the item, please state the ultimate end user's name.
(3) What is the ultimate country destination?
04/15/20