Grandway FHS2D02 User manual

FHS2
User's Guide to the FHS2 Series
Dual-wavelength Laser Source
English Version

User's Guide to the FHS2 Series
Dual-wavelength Laser Source

1
FHS2 / Introduction
1 Introduction
The FHS2 laser source offers excellent stability,
portability and facile adjustments for accurate
optical fiber testing. Single output connector serves
m u l t i - w a v e l e n g t h s - - 8 5 0 n m , 1 3 0 0 n m
1310nm,1490nm, 1550nm.
FHS2 can be used to test single mode optical fiber
of long distance and local network. Also it can work
with optical power meter to measure the loss of
optical fiber.

2.Warranty
One Year Limited Warranty
Grandway products are warranted against the defective components and workmanship
for a period of one year from the date of delivery to the original customer. Any product
found to be defective within the warranty period would be returned to Grandway
authorized service center for repair, replacement and calibration.
Exclusions
The warranty on your equipment shall not apply to defects resulting from the following:
Unauthorized repair or modification including battery replacement
Misuse, negligence, or accident
Returning Product
To return product, you may contact Grandway to obtain additional information if
necessary. To serve you better, please specify the reasons for the return.
All delivery and mails should be sent to the following address:
2
FHS2 / Warranty

Grandway Customer Service
6F, Xin'an building No. 99 Tianzhou Road
Shanghai, 200233 P.R. China
Contacting Us
Tel: [phone]/62/63
Fax: [phone]
E-mail: [e-mail]
Website: www.grandway.com.cn
3
FHS2 / Warranty

3 Safety Information
Warnings!
Never look directly into optical outputs or a fiber while the equipment is on.
Invisible laser beam may damage your eyes.
Do not short-circuit the terminal of AC adapter / charger and the batteries.
Excessive electrical current may cause personal injury due to fumes,electric
shock or equipment damage.
Connect DC power cord with the equipment and wall socket properly. While
inserting the DC plug, make sure there is no dust or dirt on the terminals and
both plugs are fully seated. Incomplete engagement may cause fuming,
electric shock or equipment damage and may result in personal injury.
Do not operate the equipment near hot objects, in hot environments, in dusty/
humid atmosphere or when condensation is present on the equipment. This
may result in electric shock , product malfunction or poor performance.
4
FHS2 / Safety Information

4 Preparing for Operation
4.1 Unpacking the instrument
Packing material
We suggest that you keep the original packing material. Using the original packing
material is your guarantee of protecting the instrument during transit.
Checking the package contents
The standard accessories of FHS2D02 are as follows:
5
Main unit(including battery)
Quality Check Report
DC 6V Adapter
Carrying Case
User's Guide
Checking for damage in transit
After unpacking the instrument, check to see whether it was damaged in transit.
This is particularly likely if the outer casing is clearly damaged. If there is damage,
do not attempt to operate the instrument or to repair it without authorization. Doing
so can cause further damage and you may lose your warranty qualification.
FHS2 / Preparing for Operation

4.2 Power Supply
There are battery indicator and power plug on the screen to show the power supply.
When you do not connect the DC 6v charger, the adapter indicator will disappear on
the screen.
When you use the battery, the battery indicator on the screen will show the remaining
charge. An empty battery indicator means the power is almost out. When the battery
charge is extremely low to supply the necessary power, the instrument will
automatically switch off . Please change the battery or recharge it
18 8 8
nm
6
FHS2/ Preparing for Operation
nm
18 8 8
nm
18 8 8
nm
18 8 8

7
FHS2 / Operation
5 Specifications
Optical Specifications
Model
Class Ι
Output wavelength(nm)
Laser
Spectral Width
Long term Stability(15min)
Short term Stability(8hr)
CW output power
Modulated Wavelength
Available Connector
Power
Adjustable Range
±0.05dB@1300,1310
±0.1dB@850,1490nm
3nm typical value
-5.0dBm±0.5dB
270Hz,1kHz,2kHz
FC/PC,SC/PC interchangeable connectors
(APC is avaiable at the time of ordering)
2 units of AA rechargeable battaries
1310&1550±20nm
FHS2D02/FHS2D02F
850&1300±20nm
±0.2dB@850,1490nm
±0.1dB@1300,1310,1550nm
NOTE: ±5% is effective under 1550nm, CW, 23℃±3℃, humidity≤70%
25 min preheat @ 25℃
1
1
2
2
2
FHS2D03/FHS2D03F
±3dB, 0.1dB/step N/A For FHS2D02F & FHS2D03F &FHS2T01F
FHS2T01/FHS2T01F
FHS2Q01F/FHS2Q02F
1310&1490&1550±20nm
850/1300/1310/1500(FHS2Q01F)
1310/1490/1550/1625(FHS2Q02F)
N/A

8
FHS2/ Operation
General Specifications
Operation Temperature
Storage Temperature
Humidity
Size(H×W×D)
Weight
o o
-10 C~+50 C
o o
-20 C~+70 C
<90%
160mm×76mm×45mm
About 0.26 kg(including batteries)
NOTE: Please be aware that Grandway will not be responsible for the damage caused by customer's
improper usage of AC power supply, especially when the instrument is working by internal batteries. The
working hours of instrument might show a difference under a different circumstances and batteries
status

9
FHS2 / Operation
6 Operation
6.1 Display and controls
6.1.1 Front(Panel Board)
KeyNo. Function
1
2
3
4
5
6
Wavelength Shifting Key: Switches working wavelength.
Modulated Wavelength Shifting Key: Switches modulated
wavelength and continuous wavelength.
Output Power Increase and Decrease: Increase or decrease output
power by 0.1dB and the adjustable range is ±3dB.
SINGLE: Auto-wavelength recognition is off.
TWIN: Auto-wavelength recognition is on.
Switches backlighting on/off.
Switches Instrument on/off. Long keypress while powering on to
activate the instrument without Auto-off function.
CW/Hz
TWIN
>2s PE RM
ON
OFF
FH S2Q 01F
S/M
S/M Switch between Single Mode and Multimode
7

10
FHS2 / Operation
6.1.2 Back & top
Connector (FC/PC,SC/PC)
Battery Plate
(including 2 units of AA recharging batteries)
DC 6v power input

11
FHS2 / Operation
6.1.3 LCD
AUTO-OFF
1kH z
2kH z
270H z
.8.8.8.8
18 8 8
nm
date
SINGLE
TWIN
Wavelength
DC Adapter
Battery Charge
Modulation
Power
Measurement Unit(dBm)
Auto-wavelength Recognition
Auto-off

12
FHS2 / Operation
6.2 Turning the instrument on and off
Press the “ON/OFF” key briefly.
The instrument powers on.(See the figure)
Press the “ON/OFF” key briefly again.
The instrument powers off.
Note: Auto-off function
1 The instrument powers off automatically if no key press in 10 minutes.
2 Press the “ON/OFF” key for about 2 seconds to power on the instrument with "Auto-off" function
deactivated.
6.3 Switching the wavelength
Press the “λ” Key to switch the wavelength
between13100nm,1550nm for FHS2D02,850nm,1300nm
for FHS2D03,1310nm,1490nm and 1550nm for FHS2T01.
AUTO-OFF
.8. 5.0
13 10
-
nm
SINGLE
AUTO-OFF
.8. 5.0
-
nm
1550
13 10
SINGLE
>2s PE RM
ON
OFF

13
FHS2 / Operation
6.4 Frequency Output
The instrument defaults to CW when it switches on.
When it is set to CW, there is no frequency on
display.
Press the "CW/Hz" Key to select the output among
270Hz, 1kHz and 2kHz.
6.5 Auto-wavelength Recognition
Press the "TWIN" Key to turn on and off the auto-wavelength recognition function.
Note:1). It is suggested to turn off the "TWIN" code when you do not use it. The optical power output of laser
source will be fluctuated.
2). The function of "TWIN" and Modulation cannot work together. When the "TWIN" is on, modulation of laser
source module is closed automatically.
3). Wavelength will be shifted automatically according to the recognition when the "TWIN" of power meter
module is on. In another word, the modulated signal of 270Hz, 1kHz and 2kHz cannot be recognized and
received at the moment.
.8. 5.0
-
SINGLE
1kHz 270Hz
2kHz
13 10
nm
AUTO-OFF
1."CW" is not displayed on the LCD
CW
1
CW/H z
TWIN

14
FHS2 / Operation
6.6 Switching backlighting of the LCD on and off
Press the Key to switch the backlighting of the LCD on and off.backlighting
AUTO-OFF
5.0
13 10
-
nm
SINGLE
AUTO-OFF
5.0
13 10
-
nm
SINGLE

FHS2 / Operation
15
6.7 Setting the output power
(Available for FHS2D02/FHS2D03/FHS2T01 )
Press the “ ” key to to increase the output power. The measurement range is from -2 dBm to -8
dBm. Each time you press it , the value increases by 0.1 dBm.
Press the “ ” key to decrease the output power. The measurement range is from -2 dBm to -8
dBm. Each time you press it, the value decreases by 0.1 dBm.
AUTO-OFF
.8. 5.0
1310
-
nm
SINGLE
AUTO-OFF
.8. 4.9
1310
-
nm
SINGLE
AUTO-OFF
.8. 5.0
1310
-
nm
SINGLE
AUTO-OFF
.8. 5.1
1310
-
nm
SINGLE

16
FHS2 / Operation
6.8 Connecting with Optical Power Meter
It can work with optical power meter to measure the loss of optical fiber accurately.
29
4
LPM-4 serie s
F H
AUTO- OFF
270Hz
1kHz
2kHz
.8.8.8.8
REF
1888
-
nm
FHP2 ser ie s
F H

7 Maintenance
Please disconnect the DC adapter/charger and cover the protective dust
cap once you finish using.
It is a good idea to clean the connector and the instrument when they get
dirty through use. Optical cleaning pads and anhydrous alcohol is
recommended. And please be careful not to get the detergent inside the
instrument.
To ensure the measurement accuracy, please send the instrument to
Grandway Service Center for calibration once a year.
NOTE: Specifications, terms and conditions are subject to change without notice.
Copyright 2007 Grandway. All rights reserved.
Grandway and its logo are trademarks of Grandway.
Printed in China.
17
FHS2 / Maintenance