yellow jacket Series 41 User manual

Key Function
ON / OFF key: power on/off and refrigerant switch.
LIT / UNIT key: Back-light and unit setting
ZERO key: pressure re-zero, refrigerant switch and unit switch
Operation:
Normal Mode
1. Press the ON/OFF key to turn on the meter when the power is off. The display
shows all digits on the display for three seconds and then shows the current
pressure, refrigerant name and the saturation temperature as shown in typical
display.
2. Press LIT/Unit key to turn on the back light (around eight seconds).
3. Press and hold ZERO key for three seconds to re-zero the pressure. During the
re-zero processing, the display shows “8888”.
4. Press and hold ON/OFF key for three seconds to turn off the meter. Before the
meter is turned off, the display shows “OFF”.
5. Press the ZERO key to switch the refrigerant forwards. And press the ON/OFF
key to switch the refrigerant backwards. The refrigerant name and the
saturation temperature are updated after switching the new refrigerant.
6. Press and hold LIT/Unit key for three seconds to enter the unit setting mode.
Series 41
Digital Manifold
Quick Start Guide
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

Unit Setting Mode
1. After entering the setting mode, the current temperature unit flashes as the first
setting unit. Press LIT/Unit key to switch between two temperature units. The
selected unit flashes.
2. Press and hold LIT/Unit key for three seconds to change the next setting unit, the
pressure unit. The current pressure unit flashes.
3. Press LIT/Unit key to switch the pressure unit as below in turn. The selected
pressure unit flashes.
psi →bar →MPa →Kg/cm2 →kPa →psi →
4. Press and hold LIT/Unit key for three seconds to return to the normal mode.
Battery Capacity
The LCD display has a battery bar for the battery life indicator. There are four levels
for the battery life. Three-bar means the maximum battery capacity and no bar (the
outline only) means the battery is almost exhausted. If only the outline is left, the
meter will be automatically turned off.
The backlight power consumption may make an apparent battery voltage drop when
the battery capacity is near only one bar. User may need to replace with a new battery
earlier if the backlight consistently used.
Refrigerant Support:
The 21 types of refrigerant support are listed as follow:
R-22, R-23, R-32, R-124, R-134A, R-290, R-404A, R-407C, R407F, R-408A,
R-410A, R-417A, R-427A, R-444B, R-448A, R-449A, R-452A, R-507, R-600A,
R-1234YF and R1270
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