Fieldpiece EH4W Operator's Manual

01 03 0602 0504

07 09 1208 1110

Quick Start

Wireless Operation

1. Select DC or AC switch position,
depending on accessory head.

2. Select RECV or SEND, depending
on operation you want to perform.

3. Hold SYNC for one second. Search
pattern will initiate on display while
searching for partner device.

4. Set partner device to appropriate
switch position.

5. Hold SYNC on partner device for
one second. Signal bars and battery
info of partner device will display on
EH4W when connection is made.

6. Enjoy the wireless goodness!

Certications

C-Tick (N22675)

CE EN 61326-1

FCC

WEEE
RoHS compliant

Description

As a new owner of EH4W you can
now wirelessly receive measurements
from anywhere on the jobsite and be
free from tangled wires. Your EH4W
can be set up to send you indoor
wet bulb measurements over-the­air for real-time target superheat
calculations while you are outside at
the condenser taking actual superheat
readings.

Take measurements in multiple
places at once and have them sent
wirelessly to you anywhere you are
on the jobsite.

Your EH4W can wirelessly receive
measurements from any Fielpiece
transmitters and display the readings
wherever you are on the job.

EH4W also converts any Fieldpiece
accessory head into a wireless
transmitter to send your measurement
over-the-air to a Fieldpiece wireless
receiver like the HG3, LT17AW, or
EH4W. This allows you to set up your
accessory heads and monitor your
measurements from anywhere on

the jobsite.

Your EH4W easily syncs with
compatible wireless Fieldpiece
transmitters and receivers. EH4W has
a wide wireless range to cover the
whole jobsite.

Fieldpiece

Wireless Electronic
Accessory Head
Handle

OPERATOR'S
MANUAL

Model EH4W

Specications

Wireless range: Up to 75 feet (23m) line of sight
Minimum Wireless Distance: Up to 1 foot (30cm)
Wireless Frequency: 910MHz to 920MHz (US),

868.1MHz to 868.5MHz (European)

Display: 5000 count FSTN LCD
Measurement Rate: 2.5 times per second, nominal
Overrange: (OL) or (-OL) is displayed
Accuracy: Stated at 73oF ±9oF (23°C ±5°C), <75% RH
Temperature Coecient: 0.1 x (specied ac-

curacy) per °C [0°C to 19°C (32°F to 66°F), 28°C
to 50°C (82 °F to 122°F)]

Auto Power O: Approx. 30 minutes
Low battery indicators: An empty battery icon

on LCD will indicate when batteries must
be replaced. Battery in lower left is for EH4W.
Battery in upper right is for partner device.

Power: Single standard 9-volt battery, NEDA 1604,

JIS 006P, IEC 6F22

Battery life: 200 hrs typical with alkaline
Operating enviroment: 32oF to 122oF (0°C to 50°C)

at <70% relative humidity

Storage temperature: -4oF to 140oF (-20°C to

60°C), 0 to 80% RH (with battery removed)

Dimensions: 140mm(H) x 59.2mm(W) x 33mm(D)
Weight: Approx. 125g including battery
Safety: Designed to meet CE-EMC.

DC Volts:

Ranges: 500mV, 5000mV (Auto)
Resolution: 0.1mV (500mV), 1mV (5000mV)
Accuracy: ±(0.5%rdg + 3dgts)
Input Impedance: 1MΩ
Input protection: Max 30 VDC or 24VAC rms

AC Volts (50Hz - 500Hz)

Ranges: 500mV, 5000mV (Auto)
Resolution: 0.1mV (500mV), 1mV (5000mV)
Accuracy: ±(1.2%rdg + 6dgts), 50Hz-100Hz
±(1.5%rdg + 6dgts), 100Hz-500Hz
Input Impedance: 1MΩ
Input protection: Max 30 VDC or 24VAC rms

Safety Symbols Used
Caution, refer to manual.
Ground

Double Insulation

How to Use

Normal Display Mode

1. Connect any Fieldpiece accessory
head to EH4W.

2. Select DC switch position for all
accessory heads expect the ACH4
current clamp (AC).

3. Select SEND switch position.

Transmitter Mode

EH4W

1. Connect any Fieldpiece accessory
head to the EH4W by sliding it onto
the top of the handle.

2. Select AC switch position for ACH4
current clamp or DC for all other
accessory heads.

3. Hold the RANGE (SYNC) button for
one second.

Note: Search pattern on LCD will initi-

ate. Once a connection is made, the
signal bars will stay solid represent­ing signal strength.

Note: The signal strength and battery

condition of the EH4W will be dis-

played on the receiver LCD when a
connection is made.

Note: If no signal is found within two

minutes, EH4W will turn o.

Receiver (LT17AW, EH4W, HG3)

4. Select RECV switch position. Hold
SYNC button for one second. For
HG3, highlight the test line and hold
SYNC button for one second.

Note: If no signal is found in two min-

utes, NSG will display. Press SYNC
button for one second to re-sync.

Receiving Mode

EH4W

1.Select RECV switch position. Then
Hold RANGE (SYNC) button until
it beeps.

Note: If no signal is found within two

minutes, EH4W will stop search­ing. Once connection is made, the
signal strength and battery life of
the partner device will be displayed
on EH4W.

Transmitter (ET2W)

1. Connect any Fieldpiece accessory

head.

2. Select AC switch position for ACH4
or DC for all other accessory heads.

3. Hold SYNC button for one second.

Transmitter (EH4W)

1. Connect any Fieldpiece accessory
head.

2. Select SEND switch position. Hold
RANGE button until beeps to sync.

Transmitter (LT17AW)

1. Select the desired measurement
range on the dial.

2. Hold SYNC button for one second.

Auto-Connection

The above operations are to

synchronize wireless devices for the
rst time. When powered on, EH4W
will automatically connect to the
last single-link receiver (LT17AW,
ET2W, or EH4W) or transmitter it was
sychronized to. No need to constantly
sync the same pair.

Data Hold, Max, Min

Data Hold, Max, and Min are only
used when EH4W is in SEND switch
position. Data Hold, Max, and Min are
disabled in RECV switch position.

1. Press HOLD/MAX/MIN to freeze the

current reading on the display.

2. Press HOLD/MAX/MIN again to

show the highest (MAX) reading.

Press HOLD/MAX/MIN a third time

to show the lowest (MIN) reading.

3. Pressing HOLD/MAX/MIN will cycle

through these settings in the above

order.

4. Hold the HOLD/MAX/MIN button

for one second to exit and return

to real-time display.

Auto Power O

Auto Power O (APO) is automati­cally disabled when EH4W is wirelessly
connected to a partner device. APO
can be manually disabled by holding
the HOLD/MAX/MIN button while
turning the switch from OFF to any
other switch position.

Maintenance

Clean the exterior with a dry cloth.

Do not use liquid.

Battery Replacement

The battery on the EH4W must be
replaced when the lower left battery
icon( ) is empty. At this point, the
EH4W will display "bAtt" on the screen
accompanied by a continuous beep.
The meter will turn o in 5 seconds
and no further measurement will be
allowed until the battery is replaced.

More Wireless...

Easily add to your wireless arsenal
any Fieldpiece accessory head with
ET2W transmitters. HG3 Multi-Channel
Wireless Analyzer receives wireless
readings from multiple transmitters.

MAX 30VDC

24VAC

CONNECT ONLY TO
ACCESSORY HEAD!

PRESS FOR 1 SEC TO EXIT

AUTO-OFF

SEND ONLY

EH4W

DC AC

CAT.III

300V

400A

CLAMP

ACH4

AC Current
Clamp

1AAC / 1mVAC
400AAC MAX

!

ET2W

LO BATT

SEND

RECEIVE

ON

AC
DC

Wireless
Transmitter

SYNC

ET2W

LO BATT

SEND

RECEIVE

ON

AC
DC

Wireless
Transmitter

SYNC

ET2W

LO BATT

SEND

RECEIVE

ON

AC
DC

Wireless
Transmitter

SYNC

AUTO OFF

ARH4

ET2W w/ ARH4

transmitting wirelessly

to EH4W

MAX 30VDC

24VAC

CONNECT ONLY TO
ACCESSORY HEAD!

PRESS FOR 1 SEC TO EXIT

AUTO-OFF

SEND ONLY

EH4W

DC AC

!

!

WARNINGS

!

Use only with Fieldpiece accessory heads. Accessory
heads deliver low voltage (under 2V) to the EH4W.
Voltages higher than 30VDC or 24VAC rms can damage
the EH4W.

DO NOT CONNECT EH4W TO LINE VOLTAGE!

CAT.III

300V

400A

CLAMP

ACH4

AC Current
Clamp

1AAC / 1mVAC
400AAC MAX

!

ET2W

LO BATT

SEND

RECEIVE

ON

AC
DC

Wireless
Transmitter

SYNC

ET2W

LO BATT

SEND

RECEIVE

ON

AC
DC

Wireless
Transmitter

SYNC

ET2W

LO BATT

SEND

RECEIVE

ON

AC
DC

Wireless
Transmitter

SYNC

AUTO OFF

ARH4

ET2W

with ARH4

ET2W

with ACH4

ET2W

with ACM3

Clear

Input

Output

Recall

Enter

Save

Sync

SETUP

Target

Evaporator

Logger

Light

Exit Temp

CFM

Display

Superheat

SubcoolingCombustion

HVAC Guide

CheckMe!

Fieldpiece

HG3

Data

Service

Displa

y

INPUT FORM
SET 01
Set ID:Indoor Temp
Measurement: 72.8
SET 02
SET ID:Comp Amps
Measurement: 23.6

CustomerID: __JONES123

HG3 Multi-Channel

Wireless Receiver

data logging

multiple readings at

the same time

13 15 1814 1716

19 21 2420 2322

Limited Warranty

In the USA, this meter is warranted
against defects in material or
workmanship for one year from date
of purchase. Fieldpiece will replace or
repair the defective unit, at its option,
subject to verication of the defect.

This warranty does not apply
to defects resulting from abuse,
neglect, accident, unauthorized
repair, alteration, or unreasonable use
of the instrument.

Any implied warranties arising
from the sale of a Fieldpiece product,
including but not limited to implied
warranties of merchantability and
tness for a particular purpose, are
limited to the above. Fieldpiece shall
not be liable for loss of use of the
instrument or other incidental or
consequential damages, expenses, or
economic loss, or for any claim of such
damage, expenses, or economic loss.

State laws vary. The above
limitations or exclusions may not
apply to you.

For Service

In the USA, call Fieldpiece
Instruments for one-price-x-all out of
warranty service pricing. Send check or
money order for the amount quoted.
Send the meter freight prepaid to
Fieldpiece Instruments. Send proof
of date and location of purchase for
in-warranty service. The meter will be
repaired or replaced, at the option of
Fieldpiece, and returned via least cost
transportation. Outside of the USA,
please visit www.eldpiece.com for
service contact information.

www.fieldpiece.com

© Fieldpiece Instruments, Inc 2011; v11

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for HVAC

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solutions to further eliminate awkward
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SRL2 IR Refrigeant leak dectector
is advanced technology in your hand
to pinpoint those tough leaks. SRL8
Headed-Diode Refrigerant leak detector
is method you know, but packed with
more features.

ET2W w/ ACM3

transmitting

wirelessly to HG3

Clear

Input

Output

Recall

Enter

Save

Sync

SETUP

Target
Evaporator

Logger

Light

Exit Temp

CFM

Display

Superheat

SubcoolingCombustion

HVAC Guide

CheckMe!

Fieldpiece

HG3

Data

Service

Displa

y

INPUT FORM
SET 01
Set ID:Indoor Temp
Measurement: 72.8
SET 02
SET ID:Comp Amps

Measurement: 23.6

CustomerID: __JONES123

300V

400A

ET2W

LO BATT

SEND

RECEIVE

ON

AC
DC

Wireless
Transmitter

SYNC

Clear

Input

Output

Recall

Enter

Save

Sync

SETUP

Target

Evaporator

Logger

Light

Exit Temp

CFM

Display

Superheat

SubcoolingCombustion

HVAC Guide

CheckMe!

Fieldpiece HG3

Data

Service

Displa

y

INPUT FORM
SET 01
Set ID:Indoor Temp
Measurement: 72.8
SET 02
SET ID:Comp Amps
Measurement: 23.6

CustomerID: __JONES123

HG3 w/ Multi-

Channel
Wireless

FUSED

200mA

MAX

FUSED

30V
MAX

WIRELESS
ENABLED

MAX/MIN

SYNCHOLD

CAT.III
MAX

600V

15 SEC FOR

500mV

RANGE

AUTO-OFF

500

600600

50

5000m

500m

500µ

50m

200m

200m

500m

5000m

50m

50

500

500µ

500

750

500

1400

200

2

K

200

20

M

2

K

200

K

20

RECV

LT17AW w/ Built-in Wireless

PRESS FOR 1 SECOND

AUTO-OFF

SRS2

Wireless
Refrigerant
Scale

ZERO

SYNC

UNITS

ON/OFF

PRESS FOR
1 SECOND

T1 T2

Atmospheric
Pressure

Superheat

Subcooling

T1 T2 Direct Saturation

Target
Superheat

CALCAL

CAL CAL

Test

Pressure

AUTO
OFF

Refrigerant

ON/OFF

Enter

Units

Alarm

Digital Manifold + Vacuum Gauge

SMAN3

ODDB

HH:MM:SS

Psig
Kpa
inHg
cmHg

Psig
Kpa
inHg
cmHg

SHT1
VSAT

APO

Microns

HiLo

SetStable

Alarm

IDWB

Target SH

R-

°F°C

SCT2
LSAT

°F°C

°F°C

T2

T2

T2

T2

T2

T2

PEAK

MUTE

ON/OFF

ON/OFF

L/M/H

SENSITIVITY

H

M

L

PEAK

LOW-BATT

PRESS FOR
1 SECOND

SRL2

Infrared
Refrigerant
Leak Detector

SENSITIVITY

H

M

L

AUTO-ZERO

LOW-BATT

SRL8

ON/OFFMUTE

ZEROL/M/H

Heated Diode
Refrigerant
Leak Detector

PRESS FOR
1 SECOND

BATTERY
CHECK