Logicbus SAP2500 Active Probe User Manual
- June 4, 2024
- Logicbus
Table of Contents
Logicbus SAP2500 Active Probe
Safety Instructions
Carefully read the following safety precautions to avoid person injury and
prevent damage to the instrument and any products connected to it. To avoid
potential hazards, please use the instrument as specified.
This section contains instructions that must be observed to keep this
oscilloscope accessory operating in a correct and safe condition. You are
required to follow generally accepted safety procedures in addition to the
precautions specified in this section. The overall safety of any system
incorporating this accessory is the responsibility of the assembler of the
system.
Connect and disconnect properly.
Connect probe to the measurement instrument before connecting the test
leads to a circuit/signal being tested. Use only within operational
environment listed.
Do not use in wet or explosive atmospheres.
Ground the product.
This product is indirectly grounded through the grounding conductor of the
mainframe power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Use indoors only.
Keep product surfaces clean and dry.
Be careful with sharp tips. The tips may cause bodily injury if not
handled properly
Do not operate with suspected failures. Do not use the probe if any part is damaged. Cease operation immediately and sequester the probe from inadvertent use.
Symbols
These symbols may appear on the probe body or in this manual to alert you to
important safety considerations.
CAUTION. Potential for damage to probe or instrument it is connected to. Attend to the accompanying information to protect against personal injury or damage. Do not proceed until conditions are fully understood and met.
Operating Environment
The accessory is intended for indoor use and should be operated in a clean,
dry environment. Before using this product, ensure that its operating
environment is maintained within these parameters:
- Temperature ： 5°to 40°C.
- Humidity： Maximum relative humidity 80 % for temperatures up to 30 °C decreasing linearly to 50 % relative humidity at 40° C.
- Altitude： Up to 10,000 ft (3,048 m).
WARNING: Do not operate this product in explosive, dusty or humid air.
CAUTION: Do not exceed the specified maximum input voltage. See technical
data for details.
Calibration
The recommended calibration interval is one year from the time the probe is
put into service.
Cleaning
The exterior of the probe and cable should be cleaned, using a soft cloth
moistened with water. The use of abrasive agents, strong detergents, or other
solvents may damage the probe. Always ensure that the input leads are free of
debris.
CAUTION: The probe case is not sealed and should never be immersed in any fluid.
Abnormalities
This probe should only be used for the purpose specified by the manufacturer.
The probe may be damaged when it exhibits visible damage or is subjected to
severe transportation pressure. If you suspect that the probe is damaged,
immediately disconnect the probe from the oscilloscope. In order to use the
probe correctly, all instructions and markings should be read carefully.
First Steps
Delivery Checklist
First, verify that all items listed on the packing list have been delivered. If you note any omissions or damage, please contact your nearest SIGLENT customer service center or distributor as soon as possible. If you fail to contact us immediately in case of omission or damage, we will not be responsible for replacement.
Functional Check
The function check needs to use the oscilloscope that supports SAPBus interface. Please follow the steps below to check the probe function.
- Turn on the oscilloscope and warm up for 20 minutes.
- Connect the active probe to channel 1 of the oscilloscope.
- Open the parameter bar of channel 1 and check the probe information, including probe model, serial number, bandwidth, impedance, capacitance, and attenuation ratio.
- Select the channel to which the probe is connected. Set the oscilloscope scale factor to 2 V/div. Set the oscilloscope offset factor to 0 V.
- Measure the average voltage of channel 1, and the reading range should be within ± (1.5%* full-screen reading +10mV). If the reading is beyond the range, the check will not pass.
- Change the scale factor of channel 1 to 1 V/div, 500 mV/div, 200 mV/div, 100 mV/div, 50 mV/div, 20 mV/div, 10 mV/div, and repeat Step 5 to check the average voltage reading at each scale.SAP1000/
Quality Assurance
The oscilloscope has a 3-year warranty (1-year warranty for probe and accessories) from the date of shipment, during normal use and operation. SIGLENT can repair or replace any product that is returned to the authorized service center during the warranty period. We must first examine the product to 8 SAP1000/SAP2500 Active Probe User Manual make sure that the defect is caused by the process or material, not by abuse, negligence, accident, abnormal conditions, or operation.
SIGLENT shall not be responsible for any defect, damage, or failure caused by any of the following:
- Attempted repairs or installations by personnel other than SIGLENT.
- Connection to incompatible devices/incorrect connection.
- For any damage or malfunction caused using non-SIGLENT supplies. Furthermore, SIGLENT shall not be obligated to service a product that has been modified. Spare, replacement parts and repairs have a 90-day warranty.
Maintenance Agreement
We provide various services based on maintenance agreements. We offer extended
warranties as well as installation, training, enhancement and on-site
maintenance, and other services through specialized supplementary support
agreements. For details, please consult your local SIGLENT customer service
center or distributor.
Mechanical Dimension
| Characteristic | Description |
|---|---|
| SAPBus interface box | 115.0 mm × 38.9 mm × 24.5 mm |
| Probe head | 83.0 mm × 14.1 mm × 6.4 mm |
| Cable length | 1.3 m (from the probe head to the compensation box) |
Accessories
The SAP1000 and SAP2500 probes are provided with numerous features and
accessories to make probing and connecting to different test points easier
than ever. Standard Accessory Part Number Quantity
| Standard Accessory | Part Number | Quantity | Unit |
|---|---|---|---|
| Straight Tip | 2.74.70.12.003 | 5 | pcs |
| Pogo Tip | 2.74.70.12.004 | 5 | pcs |
| L-In Adapter | 2.74.70.12.005 | 1 | pcs |
| Z-Ground | 2.74.70.12.006 | 1 | pcs |
| Y Lead Adapter | 2.52.42.11.020 | 1 | pcs |
| Right Angle Pin Lead 5cm | 2.52.42.11.016 | 1 | pcs |
| Straight Pin Lead 6cm | 2.52.42.11.017 | 1 | pcs |
| Right Angle Pin Lead 10cm | 2.52.42.11.018 | 1 | pcs |
| Straight Pin Lead12cm | 2.52.42.11.019 | 1 | pcs |
| Channel ID Clips (Set of 4 colors) | 2.75.23.10.003 | 1 | set |
Straight Tip： The straight tip is rugged and designed for general
probing. Fits in either probe socket. 12 SAP1000/SAP2500 Active Probe User
Manual
Pogo Tip： The pogo tip provides z axis compliance. The tip can fit into a
socket or via and onto an IC leg.
L-In Adapter: These leads have a socket on one end with a right angle and a square pin on the other to connect to the input or ground socket of the probe body and is recommended in high frequency applications.
Z-Ground： The offset pin is designed to be attached to either socket of the probe head. The offset pin is the highest quality grounding solution and is recommended in high frequency applications.
Y Lead Adapter： This lead is used for both ground and input lead simultaneously. It has two sockets on one end and two square pins on the other and may be used for general purpose probing.
Straight Pin Leads ： These leads have a socket on one end and a square pin SAP1000/SAP2500 Active Probe User Manual 13 on the other to connect to the input or ground socket of the probe body, and may be used for general purpose probing.
Right Angle Pin Leads : These leads have a socket on one end with a right angle and a square pin on the other to connect to the input or ground socket of the probe body, and may be used for general purpose probing.
Channel ID Clips： They are used to distinguish the oscilloscope channel that the probe is connected to.
Probe Operation
The SAP series probe is a precision test instrument. Exercise care when
handling and storing the probe. Always handle the probe by the probe body or
compensation box. Avoid putting excessive strain or exposing the probe cable
to sharp bends
ESD Sensitive: The tips of the probes are sensitive to Electrostatic Discharge (ESD). Avoid causing damage to the probe by always following anti- static procedures (wear wrist strap, etc.) when using or handling the probe.
Connecting the P robe to an O scilloscope
The SAP1000 and SAP2500 probes have been designed for use with Siglent’s
SDS5000X and SDS6000A platforms equipped with the SAP Bus interface. When you
attach the probe output connector to the oscilloscope’s input connector, the
oscilloscope recognizes the probe, and provides proper termination.
Connecting the P robe to the Test Circuit
To maintain the high-performance capability of the probe in measurement
applications, care must be exercised in connecting the probe to the test
circuit.
Increasing the parasitic capacitance or inductance in the input paths may
introduce a “ring” or slow the rise time of fast signals. Input leads which
form a large loop area will pick up any radiated electromagnetic field which
passes through the loop and may induce noise into the probe input.
Using one of the available accessories makes the SAP2500 probe with its small
profile and low mass head ideally suited for applications in dense circuitry.
The amplifier inside the probe has a limited linear working range. In order to
ensure that the input linearity error is less than 3%, the amplitude of the
input signal needs to be limited to ±8 V. The probe has a DC offset adjustment
function, which can adjust the DC offset to eliminate the DC component in the
test signal and maximize the performance of the probe. The DC offset
adjustment range is ±12 V.
Specifications
The SAP1000 and SAP2500 are compact, high impedance active probe designed to
meet today’s increasing demand for measurements on a variety of test points.
With low input capacitance and high input resistance, circuit loading is
minimized. With the SAPBus interface, the SAP1000 and SAP2500 become an
integral part of the oscilloscope. The probe can be controlled from the
oscilloscope’s front panel. The oscilloscope provides power to the probe, so
there is no need for a separate power supply or batteries.
Key Benefits
- Bandwidth
- DC ~ >2.5 GHz（SAP2500）
- DC ~ >1.0 GHz（SAP1000）
- 1 MΩ Input Resistance
- 10X Attenuation
- Low Input Capacitance
- ±8 Volts Dynamic Range with ±12 Volts offset capablity
- SAPBus interface
The specifications of the probe need to meet the following conditions:
- The probe is within the validity period of calibration.
- The ambient temperature is within 25℃±5℃.
- The probe is correctly connected to the oscilloscope.
- The probe and oscilloscope are in a thermally stable environment, and the probe and oscilloscope should be warmed up for at least 20 minutes.
Warranted characteristics:
| Characteristics | SAP1000 | SAP2500 |
|---|---|---|
| Bandwidth (probe only) | >1 GHz | >2.5 GHz |
| Bandwidth (with scope) | 1 GHz（SDS5104X） | 2 GHz（SDS6204A） |
| Input capacitance | 1.2 pF | 1.1 pF |
| Input resistance | 1 MΩ | |
| Offset range | ±12 V | |
| Attenuation ratio (DC) | ÷10 | |
| Offset accuracy | < 3% | |
| DC gain accuracy | < 3% | |
| Input dynamic range | ±8 V |
Maximum input voltage
(non-destruct)
| 20 V
Cable length| 130 cm
