US-8A

STC’d and PMA’d.
Two displays, with up to 8 temperature probes per display. Allows pilots to monitor up to 16 different temperatures


Overview


US-8A Overview

Features

Engine analysis is performed automatically with the US-8A. Two displays, with up to 8 Temperature Probes per display, allow pilots to monitor up to sixteen different temperatures, including EGT, CHT, TIT, OAT, Carb Temp, Cowl Temp, Oil Temp, and virtually any other temperature.

Scanning Channels

Step through each channel with the Step Switch, or place the instrument into Scan Mode and have it monitor the entire suite of monitored temperatures automatically. A programmable Scan Rate lets pilots choose between 1 to 9 seconds per channel.

Alarms

The US-8A comes complete with programmable alarms for each individual input channel. This means pilots have the capability to set unique upper and lower alarms for each cylinder. The ability to individually set redlines for your EGT’s and CHT’s is absolutely critical, as some engines have cylinders with substantially different operating ranges from one another. Just because cylinder #4 might have a redline of 1350 does not mean Cylinder #1 has the same redline. Other manufactures claim otherwise, because their instruments do not have this ability to set individual redlines.

More Alarms

On top of the already impressive individual redline programmability, the US-8A comes complete with a CHT shock-cooling limit, and an EGT differential limit. Shock cooling will alert you if your cylinders exceed a cooling rate that could result in thermal shock. The EGT differential alarm will keep an eye out for rogue EGT’s that may be an indication of a larger problem occurring in your engine.

Easy Programability

All programming for the US-8A is performed from the front of the instrument, using the same common sense navigation found in all EI instruments.

Data Recording

For only $98, any US-8A can be upgraded to download data to an EI MUX-8A Data Recorder. Specify at the time of ordering, or send it in for a retrofit.

SPECIFICATIONS


US-8A Specifications

Weight – Instrument Only

19 Oz

Weight – Probe and 6′ Cable

3.5 Oz

Weight – Probe and 20′ Cable

7 Oz.

Mount

2 1/4″

Depth

5.35″

Environmental

Meets TSO C43a

Power Requirements

7.5 to 35 volts, at .3 amps

Display

LCD, Sunlight Viewable and Backlit for Night Operations

Display Temperature Range

1999°F to -1999°F

Accuracy

1/2% in accordance with TSO C43a

Resolution

1 Degree (Fahrenheit)

Power-Up Self Test

Flashes red “Temp Prob” lights during power-up if circuits are operating correctly.

Probes

Type K, Ungrounded.

Extension Cables

Type K, any length or size (you may even use your existing Type K cables to reduce the cost and installation time).

Channels

Maximum of 16 Channels. Eight Channels per display

Analyzer Channels

1 through 8 (EGT and/or CHT), programmable from front of instrument.

Scan Rate

Programmable from the front of the panel from 2 to 9 seconds per channel.

Peak Locater

Finds hottest analyzer channel within 1°F for the right and left displays.

Hottest Cylinder Locater

Inidcates hottest analyzer channel during scan within 1°F (shows a bar in a high corner of the display)

High Limits

Programmable in 1°F increments from 1°F to 1999°F. Each channel for each display may be programmed from the front panel.

Low Limits

Programmable in 1°F increments from 1°F to 1999°F. Each channel for each display may be programmed from the front panel.

ACCESSORIES


US-8A ACCESSORIES

The US-8A is not limited to only monitoring an aircraft’s EGT and CHT; virtually any temperature can be monitored on the instrument. The instrument can also be modified to send information to the MUX-8A Data Recorder. All Temperature Inputs include 1 ea. Temperature Probe and 1 ea. 6′ Thermal Couple Cable.

P-111-XCS-6

Standard TIT Probe, 1/8 ” NPT, .187″ Diameter.

P-111-XCS-6 Standard

Fast Response TIT Probe, 1/8 ” NPT, .125″ Diameter.

P-112-XCS-6 Fast

Standard TIT Probe, 7/16 “-20, .187″ Diameter.

P-114-XCS-6

Standard TIT Probe, 1/4 ” NPT, .187″ Diameter.

P-114-F-XCS-6

Fast Response TIT Probe, 1/4″ NPT, .125″ Diameter.

P-120-XCS-6

Oil Temp Probe, 5/8″-18.

P-128-XCS-6

Outside Air Temp or Carb Temp Probe, 1/4″-28

P-104-XCS-6

Universal Temp Probe (Surface Temp), #6 Hole.

MUX-8A

Data Recorder (requires $98 conversion of US-8A in order to accept information from US-8A). Price: $395

PACKAGE DETAILS


US-8A-4

Description

4 Cylinder Analyzer Package

Kit Includes

Instrument, US-8A Wire Harness, 4 ea. P-110 EGT Probes, 4 ea. P-100 CHT Probes, 8 ea. 6′ Thermal Couple Cables, Operating and Installation Instructions, Quick Reference Guide, Pilots Diagnostics Manual.

Resolution

Stable, 1 Degree Fahrenheit

Availability

Normally Stocked Item

Price

$1,298.00

US-8A-4G

Description

4 Cylinder Analyzer Package w/ 1 Piggyback CHT. The “Piggyback” CHT is used on aircraft that already have a Primary CHT installed. The P-102-3/8 Piggyback CHT Probe is essentially a gasket that sits between the Primary CHT Probe and the cylinder being monitored. The difference in CHT temperature readings between a standard bayonet CHT probe and the Piggyback is negligible.

Kit Includes

Instrument, US-8A Wire Harness, 4 ea. P-110 EGT Probes, 3 ea. P-100 CHT Probes, 1 ea. P-102-3/8 “Piggyback” CHT Probe, 8 ea. 6′ Thermal Couple Cables, Operating and Installation Instructions, Quick Reference Guide, Pilot’s Diagnostics Manual.

External Warning Control Line

Grounds when any Red Warning LED is on or yellow LED is blinking. Current should be limited to 1/10 amp.

Resolution

Stable, 1 Degree Fahrenheit

Availability

Normally Stocked Item

Price

$1,298.00

US-8A-6

Description

6 Cylinder Analyzer Package

Kit Includes

Instrument, US-8A Wire Harness, 6 ea. P-110 EGT Probes, 6 ea. P-100 CHT Probes, 12 ea. 6′ Thermal Couple Cables, Operating and Installation Instructions, Quick Reference Guide, Pilot’s Diagnostics Manual.

Resolution

Stable, 1 Degree Fahrenheit

Availability

Normally Stocked Item

Price

$1,598.00

US-8A-6G

Kit Description

6 Cylinder Analyzer Package w/ 1 Piggyback CHT. The ” Piggyback” CHT is used on aircraft that already have a Primary CHT installed. The P-102-3/8 Piggyback CHT Probe is essentially a gasket that sits between the Primary CHT Probe and the cylinder being monitored. The difference in CHT temperature readings between a standard bayonet CHT probe and the Piggyback is negligible

Kit Includes

Instrument, US-8A Wire Harness, 6 ea. P-110 EGT Probes, 5 ea. P-100 CHT Probes, 1 ea. P-102-3/8 Piggyback CHT Probe, 12 ea. 6′ Thermal Couple Cables, 1 ea. Red AL-1 Warning Light, 1 ea. CP-1 Intensity Control Pot, Operating and Installation Instructions, Quick Reference Guide, Pilot’s Diagnostics Manual, Panel Drilling Template (for switch holes).

Resolution

Stable, 1 Degree Fahrenheit

Availability

Normally Stocked Item

Price

$1,598.00