ADM-860 Shortridge Instruments AirData Multimeter

The Shortridge Instruments ADM-860 AirData Multimeter was manufactured for the unique needs of the air balancing specialist. The keypad has been simplified for rapid selection of routine air balance functions. The versatile Shortridge Instruments VelGrid and AirFoil Probe have been manufactured for this meter kit and provide improved speed and flexibility in the measurement of air flows and velocities. Memory, with automatic average and total, reduces time spent recording data and performing calculations.

The 16-point Shortridge Instruments VelGrid provides repeatable velocity readings at HEPA filters, bio-exhaust hoods, coil banks, and many more general face velocity applications.

A standard pitot tube, or the straight Shortridge Instruments AirFoil Probe can be used for duct traverses and air velocity readings at exhaust hoods and laminar flow applications. No leveling, zeroing, or range selection is necessary.

The memory function allows the sequential storage and recall up to 100 measurements, with display of the sum and average at any point. This is a real time saver for duct traverses.

Velocity and flow readings are local density corrected to account for variations in temperature and barometric pressure.

Differential pressures can be measured from 0.0001 to 60.00 in. wc. for ducts, filters, fan, and room pressures.

The Shortridge Instruments ADM-860 AirData Multimeter design combines digital electronics with convenience and flexibility in the measurement of airflow, velocity, pressure, and temperature.

In less than 60 seconds, this meter can be installed on the Shortridge Instruments FlowHood. Air flow readings are automatically corrected for air density and backpressure at supply or exhaust outlets. Virtually eliminates A_k factors.

The Shortridge Instruments ADM-860 AirData Multimeter provides digital display of readings in English and metric units corrected for local density only. Features include speed-read, memory with total and average, and the versatile Shortridge Instruments VelGrid and AirFoil Probe. Measures air velocity, absolute and differential pressure, temperature, and backpressure compensated air flow when used with the Shortridge Instruments 8400 FlowHood.

Fast Accurate Duct Velocity Traverses:
One person can now perform pitot tube traverses in half the time previously required for two people. Each reading can be taken and entered into memory in about ten seconds. When the traverse is complete, each reading can be recalled, along with the sum and average of the readings. The Shortridge Instruments AirFoil Probe is for general single point air velocity measurement. The straight shaft design permits use in ducts as small as two inches in diameter.

Static Pressure Measurement:
The Shortridge Instruments ADM-860 AirData Multimeter measures an extremely wide range of pressures from 0.0001 in. wc. to over 60.00 in. wc. with very high accuracy. Despite its sensitivity, this meter can endure 20 psi differential pressure with no adverse effects. Absolutely no zero shift is caused by ranging or line pressure. Although designed for hand-held field use, this meter is as sensitive as some laboratory micromanometers.

Accurate Temperature Readings:
The 1/8" diameter, stainless steel Shortridge Instruments TemProbe is uniquely suited for wet bulb, dry bulb and water line temperatures. The optional eight point Shortridge Instruments AirData MultiTemp is ideal for efficiency testing of air conditioning units and heat exchangers.

Automatic Zero and Range Selection:
Internal calibration, temperature compensation, range selection and zeroing are fully automatic with each reading. No external adjustments are ever needed.

Air Density Corrected Flow and Velocity:
Air flow and velocity readings are automatically corrected for the density effect of barometric pressure and temperature. Readings are displayed as local density, true air velocity or flow.

Fume Hood and Clean Room Testing:
The Shortridge Instruments VelGrid is an accessory designed especially for use in the measurement of general face velocity conditions such as exhaust hoods, HEPA clean room filter outlets, laminar flow work stations, and large filters and coils. Each reading represents the input of 16 velocity points over a one square foot area. A 54-inch adjustable extension handle and meter neckstrap allow convenient positioning and use of the Shortridge Instruments VelGrid.

Store and Recall Readings, Average and Total:
The memory feature of the meter can store up to 100 readings for later recall of each reading, the total, and the average of the readings. This greatly simplifies pilot tube traverses, the averaging of face velocities, temperatures and static pressures, and the recording of outlet readings.

New Air Balance Accuracy:
When a capture hood is in place, the air delivery of an outlet is reduced. This "backpressure" caused flow reduction varies from one outlet or damper setting to another. The Shortridge Instruments 8400 Series FlowHood represents a major breakthrough in direct air flow measurement at supply and exhaust outlets. The The Shortridge Instruments ADM-860 AirData Multimeter is easily installed on this Shortridge Instruments FlowHood unit and integrates its instant microprocessor calculating power with the unique flaps feature in the Shortridge Instruments FlowHood base. Each reading is automatically compensated for the backpressure of the Shortridge Instruments FlowHood. Also, the Shortridge Instruments FlowHood virtually eliminates A_k correction factors and the calculations necessary to convert average velocity to air flow. The Shortridge Instruments FlowHood kits have been manufactured with the base metering section with velocity averaging grid, various top size combinations and rugged carrying case.